Sinclair2010 - thanks so much for your reply!
I have now been thru all Relief B options on the Stamp Smarter site that had no recuts in the triangles and found only one that was somewhat close, 67R2L, but it's not the one.
I am curious what you based your recommended choices of plates 2L & 3?
I specifically looked at the spacing between the frame and inner lines, the interaction of the right inner line and the top right triangle and the spacing of the upper and lower right diamond block and the frame lines and labels.
As far as color goes, my basis for the comment I made is as follows. As always the scan does not reflect what the eye sees. I have looked at it side by side with all my 10's and 11's and my lone 10A that has a cert. Sadly my 10A has a bit too much oxidation to compare well.