Well there are 3 and I own silver and the copper I would assume the last one is a gold color?
AFAIK there are 5, maybe 6. Did you get those 2 from the charity auction?
Killyou is right on this one, there are only 3 finishes with a run of 100.
The other ones are either 40, 50 or 60.
There are 7 in total, of which the polished silver, polished copper and antique brass have numbers up to 100
As killyou owns silver/copper, that leaves the
antique brass up for search.
[reference:
https://bitcointalk.org/index.php?topic=1489364.0]