Vtg. Admark 1/20 12k Gold Filled Carved Semi Precious Scarab Pin Brooch. Albert Adler started the company in 1945 and renamed it Admark in 1954. Traditionally, the designers of this company used 12 K gold fill, sterling silver and natural stones. In particular, carnelian, rock crystal, carved shell, tigers eye, jasper, black onyx, chalcedony, chrysoprase, and more. The one stone that I do know in this setting is the Tiger Eye. I believe the other two are Carnelian and Jade. The brooch measures about 2-7/8″ tall by 1-5/8″ wide. Please examine the attached photos, they describe this listing better than any words. If you can see only one photo, click the link below to the FULL description for multiple photos.