United States Postage Due Meter Stamp, Type E3

United States · 1940 · Variable (Postage Due slug)

A rectangular meter stamp design featuring 'U.S. POSTAGE' at the top, 'POSTAGE DUE' prominently in the center, and 'PAID' at the bottom. The central area for the denomination is left blank, indicating it is a template or slug.

Postage due stamps are issued to collect underpaid postage from the recipient. This meter stamp slug represents the capability of early franking machines to indicate and collect postage due, streamlining postal operations for businesses.