Old Navajo Sterling Silver Watch Band Plates with Turquoise and Coral

Old hand made Navajo sterling silver watch bane plates set with turquoise and red coral. They measure 1 1/4' by 1 1/4". The pin tubes are 3/4" long and the expansion band slots are 3/4" wide. Together they weigh 10 grams. Tarnished, No hallmarks. Acid tested.