PCGS Grading of Great Britain 1860 "COPPER" Bun Head Farthings
Although none of my reference books have any mention of an 1860 Bun Head farthing being made of copper, on some Bun Head 1860 farthings graded by PCGS the notation of "COPPER" is on the slab (such as PCGS Cert #21738327) and the PCGS POPULATION VALUEVIEW numbers of 200582 and 200583 identify the metal content of these coins as "COPPER". Is the metal content of these coins really copper and not bronze? What warrants the designation of "COPPER" and how is it determined? Are these MULE farthings?
Thanks for any help provided.