Postal Scales — National Postal Museum — Canada 39

Description

Postcard illustrating three postal scales used in Canadian post offices, preserved at the National Postal Museum. The text explains that these scales were used to weigh mail to calculate postage, with a platform scale using a pendulum, put into service in Alberta in 1925. The publisher is the National Postal Museum, with a Canada 39 stamp canceled in Montreal on September 27, 1990.