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-   -   Q: Perforations of modern US definitives (http://www.collectingbanter.com/showthread.php?t=319775)

Jan-Martin Hertzsch[_2_] October 30th 11 08:59 PM

Q: Perforations of modern US definitives
 
Dear collector friends,
I have got two questions regarding perforations or die-cuts of
modern US definitives:

1) When sorting some 29 c "Flag with pledge of allegiance" stamps
with black value and country name (first issued in 1992), I noticed
that the perforations varied. My catalog says these stamps should
be perforated 10, but some are perforated 11 x 9.5 or 10.75 x 10
which is actually closer to the 11 x 10 perforation of the variant
with red value and country name which was issued later.
Do these different perforations correspond to different print runs
(if so, which ones were printed when), or is this just a sign of
variation in the production process?

2) A 2002 First Class flag definitive, apparently a coil stamp
die cut vertically 10, has not only straight edges at the top
and the bottom, but also at the left. Only the right hand side of
the stamp shows the wavy die cut pattern. As far as I can see,
the left border of the stamp does not show any signs of wavy
die-cuts, but it is of full width, and the left edge is at right
angles with the top and bottom edge, suggesting that it has not
been cut by hand.
Could this stamp have come from the end of a coil?

Yours inquisitively,
Jan-Martin

Terry Reedy October 31st 11 11:41 PM

Q: Perforations of modern US definitives
 
On 10/30/2011 3:59 PM, Jan-Martin Hertzsch wrote:
Dear collector friends,
I have got two questions regarding perforations or die-cuts of
modern US definitives:

1) When sorting some 29 c "Flag with pledge of allegiance" stamps
with black value and country name (first issued in 1992), I noticed
that the perforations varied. My catalog says these stamps should


'My catalog'? Why so coy?

be perforated 10, but some are perforated 11 x 9.5 or 10.75 x 10
which is actually closer to the 11 x 10 perforation of the variant
with red value and country name which was issued later.


Scott 2593 is 10x10; Scott 2593B, also black and apparently same issue
date, is 11x10. The red value of 1993 is 2494. No printer is given for
these. (I am looking at Scott Specialized, which often lists such.)

Scott rounds to nearest .0 or .5, perhaps not the nearest in the case of
..5. Perhaps '9.5' is close to 9.75?

Do these different perforations correspond to different print runs
(if so, which ones were printed when), or is this just a sign of
variation in the production process?

2) A 2002 First Class flag definitive, apparently a coil stamp
die cut vertically 10, has not only straight edges at the top
and the bottom, but also at the left. Only the right hand side of
the stamp shows the wavy die cut pattern. As far as I can see,
the left border of the stamp does not show any signs of wavy
die-cuts, but it is of full width, and the left edge is at right
angles with the top and bottom edge, suggesting that it has not
been cut by hand.
Could this stamp have come from the end of a coil?


I suspect so.

Jan-Martin Hertzsch[_2_] November 4th 11 05:44 PM

Q: Perforations of modern US definitives
 
On 31/10/11 22:41, Terry Reedy wrote:

'My catalog'?


Michel 1995. Not the most up-to-date, I know ...

Scott 2593 is 10x10; Scott 2593B, also black and apparently same issue
date, is 11x10.


A-ha! Problem solved ;-)

Scott rounds to nearest .0 or .5, perhaps not the nearest in the case of
.5. Perhaps '9.5' is close to 9.75?


Could be. The perforation looks a bit coarser than a proper "10",
but a perforation gauge printed on thin cardboard (even older
the catalog) may be a little out of gauge anyway.

Thank you!

Jan-Martin



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