Poland Meter Stamp, Type GE18a

Poland · 1955 · 100 zł

A red franking mark with 'POLSKA' at the top, '100' (denomination) in the center, and 'POCZTA POLSKA' at the bottom, surrounded by a rectangular frame.

Meter stamps were used by businesses and postal services to frank mail directly, providing an alternative to traditional adhesive stamps. This particular type represents the postal franking system in Poland during the mid-20th century.