Lee Valley Tools say they are discontinuing these brass numbers:
00K80.00 (and .01, .02, etcetera)
Pic at this link:
formatting link
I use about 40 of these, mixed, once per year. Does anyone recognize them from another source? Lee Valley droid says they are made in Tiawan and he suspects that numbers sold were low so they are not carrying them anymore.Similar size would do; must be brass, not plated.