Undelivered Mail

Czech dead letter office. Břetislav Janik. Jun/2009, p. 37.

Misdirected mail from the future Czechoslovakia. Keith Brandon. Mar/2014, p. 13.

- Bohemia and Moravia

Dead letter office return delivery charges in the Protectorate of Bohemia & Moravia. David Toft. Mar/2021, p. 13.

- Sudetenland

British Legion volunteer police force September/October 1938. Peter C Rickenback. Jun/2009, p. 40.

Undercover Addresses and Mail (see Clearing Houses.)

United Nations. Relief and Rehabilitation Administration

UNRRA 558. Richard Wheatley. Dec/2011, p. 77.

Universal Postal Union (see also European Postal Union.)

Unique UPU specimens. William Alexander Page. Dec/1991, p. 99.

- International Mails During and Following World War II

Universal Postal Union [during and following World War II]. Helen G Kelly, Vicente Tuason, Robert J Hill, J Husák. Dec/2007, p. 104.

Universities and Colleges

- Czechoslovak College, Bishop's Stortford

Czechoslovak college. Lubor Kunc, translated by Robert Kingsley. Dec/2001, p. 90.

- Trnava University

Announcements and news. Colin W Spong. Mar/1985, p. 88.

- University of Applied Arts, Prague

Announcements and news. Colin W Spong. Mar/1985, p. 88.

Úprka, Jóža. 1861-1940 [Uprka, Joza] (see Artists - Úprka, Jóža. 1861-1940.)

UPU (see Universal Postal Union.)

Ustí nad Labem [Usti nad Labem]

German cancels from Ustí nad Labem. Tony Moseley. Mar/2012, p. 10.

Užhorod [Uzhorod]

Covers of interest - lot 319, April auction. Otto Hornung. Jun/2000, p. 46.