Piedmont 150 plate scratch(es) progress

[Pat R]

Originally Posted by steve_a

I can confirm that upside down White & Doyle have matching backs. It might not be super clear in the scans but I have both in hand and they match. This means that these two cards are in opposite positions, equal rows and columns from the center, sides, top/bottom, horizontal axis, etc. If we can link either of these two to a center/side/each-other via scratch we could make a lot of progress quickly. I look forward to seeing any scratches, neighbors, two-namers, etc that you have. Another piece in the sheet-size puzzle...

Almost three years ago Steve pointed out in this thread that the upside
down back of White matched up with a Doyle back.

At the time I searched and couldn't find a Doyle or Stone (Doyle and
Stone share the same position on a plate scratch sheet) that had a print
flaw that is on the smaller portion of the second back on the upside down
White.

This Doyle that sold on ebay recently has that mark.
Doyle that matches White upside down back.jpgDoyle that matches White upside down back. Back.jpg
White (port) Upside Down Back PD 150 - Copy.jpg
White (port) Upside Down Back PD 150.jpg
So far Doc White hasn't been found with a plate scratch but if
one is eventually found it should allow us to figure out the exact
size of this plate scratch sheet based off the upside down White.


If the link works it should be a scan of that sheet that can be enlarged.
https://photos.imageevent.com/patric...ts/C-D%201.jpg