rick,
I can't take the credit for the pick holder. It's a piece made by MBS. As far as installing, it's quite easy. It comes with three triangular protrusions on the back. You just inlet them part way, and drive them in with a hammer and punch.
George,
Yeah, it's the same one. I used some period correct epoxy. (sorry) It hid pretty well.
By the way..... I still need a nice, crusty bag. AND, NO, I still haven't found the patchbox lid. Oh, wait, there it is. a 1" x 6" x 48" piece of cherry.