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No. The ink set-off of these early flat plate printings is on the paper, under the gum, which was applied later.
In contrast to poorly stored stamps which stuck together after sale and the ink is on top of the gum.
I'm a Little confused. What do you mean by "on the paper under the gum"? I remembered being told recently about the glossary on the title page, and found this:
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Offset
1) A printing process that transfers an inked image from a plate to a roller. The roller then applies the ink to paper. 2) The transfer of part of a stamp design or an overprint from one sheet to the back of another, before the ink has dried (also called set off). Such impressions are in reverse (see Mirror image). They are different from stamps printed on both sides.
This definition only mentions a transfer of design or overprint before the ink has dried…. Guessing here: That the set off will only happen when the ink is still wet, before gum is applied and that part of the image or overprint is transferred THEN the gum is applied?? Setoff cannot happen after the gum is applied?
Posted 08/08/2024 10:34 am
