Posted By:
Joe PelaezI guess my question really is:
How did they exactly polish, or erase whatever portion of the plate they wanted to erase?
A couple of years later, about 1946 or 1947, I recall going with my high school class to the New York Times building.
Now that was a massive operation, and no comparison to the one old printing press at the jr high school. 
I would surmise that the printing facilities of the then tobacco cards, were smaller than the NY Times, but larger than the one old printing press at my Patrick Henry jr high school.
From 1909, we're talking about an almost one hundred years period.
The technology, and printing press have changed, at least I think they have. ... you guys tell me.
My limited recollections is boiled down to the memory of using a wooden mallet to secure a freshly created plate to the press, sixty three years ago.
I certainly appreciate your input, and the possible inputs of others in or out of the printing worldt.
Did the pressmen have a union then?
Did someone say "Quitten time" - let some one else change the league designation?
Joe P.
I have two common Joe Doyle's ... P350/SC350 ... no marks.