Old style DEC 5-1/4" "pop panel" needed (will trade for 10 1/2")

[Bob Armstrong]

  I need a DEC, old style, "pop panel" blank rack panel that's 5 1/4" high.
I'd be happy to trade for a 10 1/2" pop panel if that helps anybody (heck,
I'll trade for two - I've got several of the 10 1/2 panels).

Thanks,
Bob Armstrong