Poland Type BA9 Meter Stamp

Poland · 1958 · Variable (meter franking)

This is a meter stamp from Poland, identified by the catalog type BA9. Meter stamps are machine-applied frankings used to indicate postage paid, typically featuring a postmark and a variable value.

Meter stamps were introduced to streamline mail processing for businesses and postal services, offering an efficient alternative to traditional adhesive postage stamps and contributing to the modernization of postal systems.