Rich, please correct me if wrong,,
, IF sand cast they wouldn't need the perch [?].. I saw once the model gets pressed in sand and usually the metal gets poured in directly [wasn't for a ring],, or,they would pour in wax? then invest cast,,weird...

I agree, still many things don't jive on the whole situation..... Some of the guys enjoy them.. Nothing serious for a ring collection but something interested to include if you like it..