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Chalk surface paper



 
 
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  #11  
Old September 14th 07, 08:31 PM posted to rec.collecting.stamps.discuss
Tim der Kinderen
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Posts: 8
Default Chalk surface paper

On my stamps no silver wire scratches and no liquids are allowed, only a
trained eye with 8-10x magnification and good ligth. The training can be
carried out comparing the appearance of two stamps where the coated paper
is coupled with another property such as "papier grille"(sorry my english
fails) for instance the Swiss stamps Mi 194x-197x uncoated paper and Mi
194z-197z chalksurfaced paper which is also "papier grille". .
In this way coated and noncoated can be determined. If you realy want to
know if the coating is chalk use a stereo microscope 25x. and compare the
stamp in question with a stamp which surely is chalk coated.

Tim der Kinderen

"malcolm" schreef in bericht
oups.com...
If trying to identify using the uv lamp scan the back as well as the
front. If the back reacts too the flourescing agent has been added to
the paper at the manufacturing stage and is not a coating. This does
not mean that the stamp has/has not got a coating in addition - but
will help in any process of elimination. Also check for a dated
postmark. Any stamp with a postmark before the date of the new issue
will be 99% certain to be the first issue ( unless the postmark date
has been set in error). Regrettably the opposite cannot be said as
stamps from the first issue can "hang around" for months after the
date of the second. However stamps used years after the date of change
are most likely to be the second issue. As in most of these matters
comparison with a known example is the best guide. Also coated papers
tend to have a "sharper" image than uncoated. As an alternative to dry
lips use the very tip of your little finger ( this is very sensitive )
and a coated paper should feel smoother.

Any further "old wives tales" on this subject would be welcome.
Probably a combination of methods will elicit a high probability of
correct indentification

Malcolm









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  #12  
Old September 15th 07, 05:08 PM posted to rec.collecting.stamps.discuss
Rein
external usenet poster
 
Posts: 335
Default Chalk surface paper

Tim,

I mentioned Swiss stamps as being with chalky paper and people having an
obsession for this kind of distinction of stamps. Another way of looking
at the chalky ones is having a good look at where the coating is peeling
off; obviouslyuncoated stamps can't have a peeling-off coating

P.S.

I'll give you a reference to my website about Swiss stamps later on - all
in Dutch but that shouldn't be a problem ....


Op Fri, 14 Sep 2007 21:31:28 +0200 schreef Tim der Kinderen
:

On my stamps no silver wire scratches and no liquids are allowed, only
a
trained eye with 8-10x magnification and good ligth. The training can be
carried out comparing the appearance of two stamps where the coated
paper
is coupled with another property such as "papier grille"(sorry my english
fails) for instance the Swiss stamps Mi 194x-197x uncoated paper and Mi
194z-197z chalksurfaced paper which is also "papier grille". .
In this way coated and noncoated can be determined. If you realy want to
know if the coating is chalk use a stereo microscope 25x. and compare the
stamp in question with a stamp which surely is chalk coated.

Tim der Kinderen

"malcolm" schreef in bericht
oups.com..
If trying to identify using the uv lamp scan the back as well as the
front. If the back reacts too the flourescing agent has been added to
the paper at the manufacturing stage and is not a coating. This does
not mean that the stamp has/has not got a coating in addition - but
will help in any process of elimination. Also check for a dated
postmark. Any stamp with a postmark before the date of the new issue
will be 99% certain to be the first issue ( unless the postmark date
has been set in error). Regrettably the opposite cannot be said as
stamps from the first issue can "hang around" for months after the
date of the second. However stamps used years after the date of change
are most likely to be the second issue. As in most of these matters
comparison with a known example is the best guide. Also coated papers
tend to have a "sharper" image than uncoated. As an alternative to dry
lips use the very tip of your little finger ( this is very sensitive )
and a coated paper should feel smoother.

Any further "old wives tales" on this subject would be welcome.
Probably a combination of methods will elicit a high probability of
correct indentification

Malcolm












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  #13  
Old September 15th 07, 05:15 PM posted to rec.collecting.stamps.discuss
Rein
external usenet poster
 
Posts: 335
Default Chalk surface paper

Tim,

Swiss chalky paper:

http://www.xs4all.nl/~dziewon/fila/helv_ctg.htm


groetjes, Rein

Op Fri, 14 Sep 2007 21:31:28 +0200 schreef Tim der Kinderen
:

On my stamps no silver wire scratches and no liquids are allowed, only
a
trained eye with 8-10x magnification and good ligth. The training can be
carried out comparing the appearance of two stamps where the coated
paper
is coupled with another property such as "papier grille"(sorry my english
fails) for instance the Swiss stamps Mi 194x-197x uncoated paper and Mi
194z-197z chalksurfaced paper which is also "papier grille". .
In this way coated and noncoated can be determined. If you realy want to
know if the coating is chalk use a stereo microscope 25x. and compare the
stamp in question with a stamp which surely is chalk coated.

Tim der Kinderen

 




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