Gober-Burnham Turquoise (NV) and Oxidized Sterling Silver Handmade Cross Bead Clip
Cross Measures: 3 inches X 2 &1/2 inches
This was in a large batch of turquoise that I purchased from a retiring turquoise collector. It is labeled and "Gober-Burnham (Last Chance) Turquoise" I believe that looks correct. It is handmade by a silversmith, and stamped with signature that I can not read (see picture) and is stamped "Sterling" on the back and has been acid tested to confirm that it is solid sterling. You can use this as a bead clip or remove the clip and add a bail to use it as a pendant, I would suggest drilling a hole to add a bail.
Godber Burnham is an iconic mine located outside of Austin Nevada. It was first located in 1936 and continues to produce beautiful turquoise