Selo Print on X: ""Benzene Ring" " Want to make your kids study life easier and more interesting? Gift them these kind of stamps. " Ink your impressions! #entrepreneur #business #businesses #rubberstamps #
BELGIUM - CIRCA 1966: a stamp printed in Belgium shows August Friedrich Kekule (1829-1896), and benzene ring, was a German organic chemist and chemist Stock Photo - Alamy
Buy School Science Chemistry Class 1/2 Self-inking Rubber Stamp Ink Stamper Online in India - Etsy