CZECHOSLOVAKIA - CIRCA 1954: A stamp printed in Czechoslovakia, shows chemist with a test tube and bulb, series, circa 1954
Editorial use only
Editorial credit: Solodov Aleksei / Shutterstock.com

Royalty-free stock photo ID: 91283390

CZECHOSLOVAKIA - CIRCA 1954: A stamp printed in Czechoslovakia, shows chemist with a test tube and bulb, series, circa 1954