Not sure about the exact name, but I would describe them as the small brass
things shaped like the outline of the numeral one that fit to the key when
it is put into a lock. The ones I have have a 1, 2, 3, or 4 stamped into
them.

When I shared a few with a list member he said "you sent me 1 through four.
Do you have four through eight?" I checked with another list member who
happens to be my brother and his only go through four. It could be a family
curse.

What's the story here? What comprises a complete set?

Thanks,

Jim