Piedmont 150 plate scratch(es) progress

[steve B]

A while back I noticed a piedmont 150 back with what looked like a line from a plate scratch.

Figuring that there was a scratch caused by some debris towards the end of production, I started looking for more examples hoping to maybe find 4 or 5 that strung together which would be a step towards figuring out the sheet layout in some concrete form. Combining this with double name cards and miscuts might lead to figuring out a block of cards rather than just a couple pairs.

After a few months of looking mostly on Ebay I've found nearly 30 cards showing some part of the plate scratch.

That back plate got way messed up at some point.

At least one scratch running vertically, at least two runing horizontally, probably more like 3 or 4.

I've also found one other plate flaw that's consistent, and found on two different cards.

Here's an example of one of the plate scratches. This one on a Cobb bat on shoulder, which has so far 3 different positions showing different damage.


Cobb bat on also has one where the lines cross near the center of the card and one without a crossing line as well as a normal back.

Another surprise has been figuring out that the damaged plate was used for more than one group of fronts
And some evidence that it was eventually repaired to some degree but I'm not certain about that

If you've got scans of cards showing thses lines I'd be glad to see them and add to the ones I've seen so far. Don't worry about it being the same as one I already have, as I'm trying to figure out the posible repair and a few other things.

Steve B