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I'm late to this posting but I do have a comment. Sometimes I will soak stamps to remove hinges, etc and then place on a paper towel to dry. Once dry, I put them in a bookbinders paper press, which exerts a lot of pressure on the stamps and makes them flat, if they curved during drying.
I have found that if I put the stamp on a paper towel, the paper press makes a 3D impression of its design onto the stamp if it is still even a little wet.
Perhaps something similar happened with your example.
John
Hi John after soaking the stamps I always put them on a cotton tea towel to dry. When they are slightly moist I put the stamps between smooth printing paper on each site approx 10 papers. The stamps have generous spacing among themselves ,around 2 inches. Then I put heavy stampalbum on it for around 16 hours.
The stamp in question I did separately without other stamps.
It's excludet that this stamp become "ribbed" from
external factors.
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You make an excellent point. I also dry stamps on paper towels that have ridges, and then press them inside of phone books (remember those?) and sometimes see mottled patterns on the stamps after drying. Depending on the density of the drying fabric that someone used, it might have the appearance of ribbed paper.
I don't think that my drying technique after soaking the stamps would allow to get the impressions from towels, papers on the stamp.
Interesting point is that this stamp after pressed between the copy paper with the weight of the stamp album on it, was relatively flat. A few hours were needed that the fibers from the stamp reset to the original state.
On the scans we can see the stamp with the hinge before I soaked it.
Posted 01/21/2024 2:19 pm
Yes I see that lines too.
