Piedmont 150 plate scratch(es) progress II

[steve B]

Finally made the puzzle out of the ones seen so far. Made a bunch of paper P150 backs, and drew the known scratches in by hand. That gives me something concrete to work with.

It's looking promising.

A bunch of pairs or blocks, nothing huge but decent so far.

Enough to now know the damaged plate was used for at least 3 different sheets.

This is almost certain.
There are scratches for some 150 only subjects, as well as many from those printed with some 350 backs.

There are also pairs with the same scratch, indicating that they were not on the same sheet.

Those pair are
Walsh /Ames hands at chest
Powell / Goode
Durham /Crawford
Durham /Oldring

That last pair leads me to believe that at least 4 sheets were involved.

Here's the blocks so far, in no particular order.
Note that Durham might be interchanged with Crawford, but I don't yet have a scan of crawford with that particular scratch.
I also have a horizontal strip of 3 I'm looking at, but I'm not positive enough yet to tape them together.

Steve B