15 Kopecks R.S.F.S.R., Soviet Union silver coin from 1923 under the microscope

Silver .500 weights 2.7 grams

National arms within circle.

Lettering:
ПРОЛЕТАРИИ ВСЕХ СТРАН,СОЕДИНЯИТЕСЬ!
Р.С.Ф.С.Р.

Translation:
Workers of the world, unite!
RSFSR

Value and date within beaded circle, star on top divides wreath.

Bullion value is around 1 USD, but uncirculated coins like this one have been sold for over 1000 USD !!!

Great coin in my humble collection!