Two Antique Ruby and Diamond Brooches

One designed as a crescent moon set with circular-cut rubies and old European- and single-cut diamonds, brooch pin detachable, the other bar-shaped and set with oval and cushion-shaped rubies framed by old mine-cut diamonds, maker's mark, partial Russian town's mark for St Petersburg; circa 1900.

Approximate measurements: 60 x 10mm and 50 x 5mm respectively