Unsigned Beauties of Costume Jewelry : Identification and Values by Marcia Sparkles Brown (2000, Hardcover, Illustrated edition) for sale online | eBay
Vintage Costume Jewelry Identification and Value Guide
A Guide to Jewellery & Gold Hallmarks | James Porter & Son
Jewelry Identification] Old family Bloodstone Ring, D.L.D makers mark but can't find any information : r/jewelry
ALL jewelry makers mark identification | Hi guys, admin here, I created a sister group for selling jewelry, because no sales posts are allowed in this group | Facebook
Jewelry Identification | Antique Jewelry University