Beckman Model 813 Ladder Network with Franklin Delano Roosevelt stamp

2023-01-10T15:33:56-05:00

This photograph is part of a series of marketing images used to demonstrate the small size of Helipot products. The horizontal coil 6 cent postage stamp depicts Franklin Delano Roosevelt. This Prominent Americans Issue stamp was issued, in various formats, between January 1966 and February 1968.