Thanks Richard,
Luckily the missing corner is very dark - it would just be a matter of creating a small piece and affixing it to the back of the matt, so that it overlaid the empty spot. There are several ways of handling it, but it should be a simple fix.
My dream would be to find the 1909 version of this cabinet, along with a similar one for the 1909 Tigers, somewhere in Maine during a picking trip. I could stop collecting at that point
