Ink Blotch During Or After Printing?

Any thought on this. Could something have caused this post printing without damaging the paper?

That's a DRIP (or splash) from some clumsy person (or environment)... either straight acetone or a derivitive, or even denatured alcohol will dissolve ink. Most assuredly what you're seeing on your stamp did not occur during any point in the stamp's production process.

The only possible exception would be the use of the above chemicals which might have been utilized for cleaning plates and/or dies and an un-noticed splash caused by the worker - having occurred with completed sheets nearby...

Here's a blotch...

Here's a disastrous Drip that severely drops the value of this stamp. (The mark at the bottom doesn't help either.)

Game, set, match...

Partime, ouch.
disi, yea I think 'blotch' is not the correct word to describe the spot on the Franklin. Drip mark is more accurate.

Maybe it's Goiter.


-IBFS