If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Dip or no dip?
It's time to play that wonderful game of dip or no dip. Let's meet
today's contestant, an AU 1851-O trime: http://wemightneedthat.biz/trime-obv.jpg http://wemightneedthat.biz/trime-rev.jpg So what says the jury? Should this coin keey it's authentic "patina" accrued over the last 150+ years, or is it time for a refreshing and revitalizing bath? -- Mike Benveniste -- (Clarification Required) Its name is Public opinion. It is held in reverence. It settles everything.Some think it is the voice of God. -- Mark Twain |
Ads |
#2
|
|||
|
|||
Dip or no dip?
Michael Benveniste wrote:
It's time to play that wonderful game of dip or no dip. Let's meet today's contestant, an AU 1851-O trime: http://wemightneedthat.biz/trime-obv.jpg http://wemightneedthat.biz/trime-rev.jpg So what says the jury? Should this coin keey it's authentic "patina" accrued over the last 150+ years, or is it time for a refreshing and revitalizing bath? It's hard to tell from a two-dimensional picture, but that blackest stuff certainly looks like corrosion product to me. I doubt that dipping without scrubbing will take it away, and you're likely to be left with pocked surfaces, not such a pretty sight, either. If you value the coin at all, I'd take it to an experienced "coin doctor" and get an opinion coin-in-hand. James the Double Dipper |
#3
|
|||
|
|||
Dip or no dip?
Mr. Jaggers wrote:
Michael Benveniste wrote: It's time to play that wonderful game of dip or no dip. Let's meet today's contestant, an AU 1851-O trime: http://wemightneedthat.biz/trime-obv.jpg http://wemightneedthat.biz/trime-rev.jpg So what says the jury? Should this coin keey it's authentic "patina" accrued over the last 150+ years, or is it time for a refreshing and revitalizing bath? It's hard to tell from a two-dimensional picture, but that blackest stuff certainly looks like corrosion product to me. I doubt that dipping without scrubbing will take it away, and you're likely to be left with pocked surfaces, not such a pretty sight, either. If you value the coin at all, I'd take it to an experienced "coin doctor" and get an opinion coin-in-hand. James the Double Dipper I agree. It's worth a quick dip, but before you try anything abrasive get an experienced opinion. |
#4
|
|||
|
|||
Dip or no dip?
On Jul 18, 7:17*pm, "Mr. Jaggers" lugburzman[at]yahoo[dot]com wrote:
Michael Benveniste wrote: It's time to play that wonderful game of dip or no dip. *Let's meet today's contestant, an AU 1851-O trime: http://wemightneedthat.biz/trime-obv.jpg http://wemightneedthat.biz/trime-rev.jpg So what says the jury? *Should this coin keey it's authentic "patina" accrued over the last 150+ years, or is it time for a refreshing and revitalizing bath? It's hard to tell from a two-dimensional picture, but that blackest stuff certainly looks like corrosion product to me. *I doubt that dipping without scrubbing will take it away, and you're likely to be left with pocked surfaces, not such a pretty sight, either. *If you value the coin at all, I'd take it to an experienced "coin doctor" and get an opinion coin-in-hand. James the Double Dipper Can I mention an "old family recipe" without mentioning the old family that mentioned it to me? 1. bring (ca. 1 pint of water) to a rolling boil 2. add clear dishwashing detergent (ca. 1 Oz) 3. add a small amount of household Ammonia 4. cook the coin for a few minutes 5. rinse and inspect in cool water 6. rinse with distilled water 7. dry by resting coin on an absorpant towel for a few minutes (turn once) 8. air dry coin As long as the coin is silver, it should leave the metal undamaged. I found a lot of circulated coins accumulate greasy dirt that can look like corrosion and hot soapy water often does a fine job. If it is corrosion, then seek better help. |
#5
|
|||
|
|||
Dip or no dip?
Michael Benveniste wrote:
It's time to play that wonderful game of dip or no dip. Let's meet today's contestant, an AU 1851-O trime: http://wemightneedthat.biz/trime-obv.jpg http://wemightneedthat.biz/trime-rev.jpg So what says the jury? Should this coin keey it's authentic "patina" accrued over the last 150+ years, or is it time for a refreshing and revitalizing bath? Dip IT...... -- Support Communization SHOP Walmart |
#6
|
|||
|
|||
Dip or no dip?
On Sat, 18 Jul 2009 18:17:30 -0500, "Mr. Jaggers"
lugburzman[at]yahoo[dot]com wrote: It's hard to tell from a two-dimensional picture, but that blackest stuff certainly looks like corrosion product to me. I doubt that dipping without scrubbing will take it away, and you're likely to be left with pocked surfaces, not such a pretty sight, either. If you value the coin at all, I'd take it to an experienced "coin doctor" and get an opinion coin-in-hand. Thanks, but if it's corrosion, NGC and I will have a few words about their standards for AU-55. I'm thinking of sending it in to NCS along with a problem coin or two. -- Mike Benveniste -- (Clarification Required) Don't succumb to the false authority of a tool or model. There is no substitute for thinking. |
#7
|
|||
|
|||
Dip or no dip?
Michael Benveniste wrote:
On Sat, 18 Jul 2009 18:17:30 -0500, "Mr. Jaggers" lugburzman[at]yahoo[dot]com wrote: It's hard to tell from a two-dimensional picture, but that blackest stuff certainly looks like corrosion product to me. I doubt that dipping without scrubbing will take it away, and you're likely to be left with pocked surfaces, not such a pretty sight, either. If you value the coin at all, I'd take it to an experienced "coin doctor" and get an opinion coin-in-hand. Thanks, but if it's corrosion, NGC and I will have a few words about their standards for AU-55. I'm thinking of sending it in to NCS along with a problem coin or two. It is arguable that any degree of toning could be classified as corrosion, but we normally reserve that nasty word for corrosion products that form a crust that protrudes above the surrounding virgin surfaces. Did the coin look that way when you got it? I have heard tales of coins that had been cleaned, improperly rinsed, and then slabbed, forming an incubator for growths such as you see on your coin. James |
#8
|
|||
|
|||
Dip or no dip?
On Sat, 18 Jul 2009 22:15:28 -0500, "Mr. Jaggers"
lugburzman[at]yahoo[dot]com wrote: It is arguable that any degree of toning could be classified as corrosion, but we normally reserve that nasty word for corrosion products that form a crust that protrudes above the surrounding virgin surfaces. Agreed. With a 10x loupe, it doesn't look crusty, but of course I'm looking through a slab. Did the coin look that way when you got it? I have heard tales of coins that had been cleaned, improperly rinsed, and then slabbed, forming an incubator for growths such as you see on your coin. I haven't owned for more than a couple of months, but there's been no change since I got it. -- Mike Benveniste -- (Clarification Required) Its name is Public opinion. It is held in reverence. It settles everything.Some think it is the voice of God. -- Mark Twain |
#9
|
|||
|
|||
Dip or no dip?
Peter wrote:
On Jul 18, 7:17*pm, "Mr. Jaggers" lugburzman[at]yahoo[dot]com wrote: Michael Benveniste wrote: It's time to play that wonderful game of dip or no dip. *Let's meet today's contestant, an AU 1851-O trime: http://wemightneedthat.biz/trime-obv.jpg http://wemightneedthat.biz/trime-rev.jpg So what says the jury? *Should this coin keey it's authentic "patina" accrued over the last 150+ years, or is it time for a refreshing and revitalizing bath? It's hard to tell from a two-dimensional picture, but that blackest stuff certainly looks like corrosion product to me. *I doubt that dipping without scrubbing will take it away, and you're likely to be left with pocked surfaces, not such a pretty sight, either. *If you value the coin at all, I'd take it to an experienced "coin doctor" and get an opinion coin-in-hand. James the Double Dipper Can I mention an "old family recipe" without mentioning the old family that mentioned it to me? 1. bring (ca. 1 pint of water) to a rolling boil 2. add clear dishwashing detergent (ca. 1 Oz) 3. add a small amount of household Ammonia 4. cook the coin for a few minutes 5. rinse and inspect in cool water 6. rinse with distilled water 7. dry by resting coin on an absorpant towel for a few minutes (turn once) 8. air dry coin As long as the coin is silver, it should leave the metal undamaged. I found a lot of circulated coins accumulate greasy dirt that can look like corrosion and hot soapy water often does a fine job. If it is corrosion, then seek better help. I'm just returning to coin collecting a have a couple of questions. I have read that grading services reject cleaned coins. I that true or rumor. I have some older pennies that have some surface crud, would the above recipe constitute cleaning, as I see no caustic materials in it. Don |
#10
|
|||
|
|||
Dip or no dip?
dlhii wrote:
Peter wrote: On Jul 18, 7:17 pm, "Mr. Jaggers" lugburzman[at]yahoo[dot]com wrote: Michael Benveniste wrote: It's time to play that wonderful game of dip or no dip. Let's meet today's contestant, an AU 1851-O trime: http://wemightneedthat.biz/trime-obv.jpg http://wemightneedthat.biz/trime-rev.jpg So what says the jury? Should this coin keey it's authentic "patina" accrued over the last 150+ years, or is it time for a refreshing and revitalizing bath? It's hard to tell from a two-dimensional picture, but that blackest stuff certainly looks like corrosion product to me. I doubt that dipping without scrubbing will take it away, and you're likely to be left with pocked surfaces, not such a pretty sight, either. If you value the coin at all, I'd take it to an experienced "coin doctor" and get an opinion coin-in-hand. James the Double Dipper Can I mention an "old family recipe" without mentioning the old family that mentioned it to me? 1. bring (ca. 1 pint of water) to a rolling boil 2. add clear dishwashing detergent (ca. 1 Oz) 3. add a small amount of household Ammonia 4. cook the coin for a few minutes 5. rinse and inspect in cool water 6. rinse with distilled water 7. dry by resting coin on an absorpant towel for a few minutes (turn once) 8. air dry coin As long as the coin is silver, it should leave the metal undamaged. I found a lot of circulated coins accumulate greasy dirt that can look like corrosion and hot soapy water often does a fine job. If it is corrosion, then seek better help. I'm just returning to coin collecting a have a couple of questions. I have read that grading services reject cleaned coins. I that true or rumor. I have some older pennies that have some surface crud, would the above recipe constitute cleaning, as I see no caustic materials in it. Don, welcome back to collecting. It's never been better! Quite frankly, grading services will *advertise* that they will not slab cleaned coins (they rejected one of mine the first time I submitted it, but slabbed it when I submitted the exact same coin the second time), but then you'll go to coin shows and see cleaned coin after cleaned coin, even in the so-called "respectable" slabs. Some people will tell you that it has to do with the rarity of the coins, but that's only partially true. I recently submitted a coin with a survivorship of fewer than a hundred examples that, yes, looked like it may have been cleaned 100 years ago, but it came back ungraded in a "genuine" holder from PCGS. The latest chic in the industry is to use the expression "second skin" to refer to coins that have retoned after a cleaning. It's entirely subjective, arbitrary, and capricious, from where I sit. As far as your coins are concerned, it depends on what that surface crud is. If it consists of deposits of "copper wax" (skin oils, dirt, other things we'd best not name) around the lettering, this stuff can be removed mechanically with the sharp end of a green rose thorn without damaging the coin in any way. If it's corrosion, then all bets are off. Peter's formula is essentially a solvent-based approach to the problem, and as he says, works best with silver coins. James |
Thread Tools | |
Display Modes | |
|
|