Cachet shows the Curie laboratory in Paris, and stamps depict Marie Curie with a bowl of radium.
- Artist Autier, Ph., Pheulpin, Jean
- Engraver Pheulpin, Jean
- Subject Women in science, Curie, Marie, 1867-1934, Women physicists, Women in physics, France, Women scientists, Chemists, Postmarks, Commemorative postage stamps, Women chemists, Science on postage stamps, Nobel Prize winners, Women in chemistry, Cachets (Philately), Physicists, Postage stamps, Postcards, Women physical scientists, Women Nobel Prize winners
Cachet and semipostal stamp depict Gay-Lussac. Cachet depicts a book titled "Law of Gay-Lussac" and various scientific apparatus. Envelope is addressed to Mrs. Richard M. Lawrence, President of the ACS Wives Club.