International Philatelic Union

The society survived to see its jubilee in 1931, and an exhibition was held to celebrate the fact,[2] but its later history is unclear.

[1] On 23 February 1901 the Union held an important competitive exhibition at the premises of the Royal Philatelic Society in Effingham House, Arundel Street, London.

Competitors were allowed up to fifty stamps in their entry which could be in one of five classes, 1) Great Britain or a British colony, 2) A country or colony not in class one, 3) Fiscals, 4) Envelopes and Postcards, 5) Stamps not listed in the Stanley Gibbons catalogue.

[4] A number of distinguished philatelists, often members of the Royal Philatelic Society as well, were members of the I.P.U., including:[5] RDP = Roll of Distinguished Philatelists The official organ of the Union was The Philatelic Journal of Great Britain, published from 1891.

As of 1938 the journal was also the official publication of the Manchester, City of London, Herts and Birmingham Philatelic Societies.