~~~ were used for mounting purposes, though I wouldn't discount the one-holed chips were not used as giveaway samples as perhaps the twice-drilled chips were, too.

In either event; I agree with what Rich said about the Floridian "1" chip.

I had 4 undrilled "1" chips and USPC had two drilled examples when I found my chips. Other than the "1" Rich has, I do not know of any others, yet.