UNITED STATES: POSTAL STATIONERY CARDS

Classification

Territory

USA

Subject

Specialisation in the design and production of stamps, postal stationery and other securities; types, plate flaws, … Standard post office postmarks

Time period

Late 19th century Early 20th century (until World War I) World War I Interwar period World War II Late 1940s 1950s (1950–60)

Exhibition class

Non-standard-size exhibits