This vintage brooch set has been jeweler tested for sterling silver. The center stones have not been tested and is a lemon yellow - like a lemon quartz but may be just glass. The brooches are unmarked as to maker but has a patent for the pinback of "2066969". These are both well made and solid. The rectangular brooch is 9.5grams with a 12mmx9mm stone. The circular one is 1.35inches x.95inches and 6.8 grams with a 11mmx9mm stone.
These are in very good condition overall with very minimal wear and each with a lovely patina. Pinbacks work fine. BG60 BG97