|Note_en={{Dating|back}} Published also on ''Life'' (date 1953-04-13). Advertising for a [[Snorkel Pen]] ''[[Valiant]]'' version (not mentioned), and its filling system. | |Note_en={{Dating|back}} Published also on ''Life'' (date 1953-04-13). Advertising for a [[Snorkel Pen]] ''[[Valiant]]'' version (not mentioned), and its filling system. |