Posted By:
Ol' ProfMark:
Try this link: http://findarticles.com/p/articles/mi_qa5344/is_200407/ai_n21352505
It's a little old, but should get you started. The Antiques Road Show has had several banks like yours in the past few months, and it seems to me that all of the appraisals depended heavily on condition, maybe even more than rarety. Sort of like cards.
OP