On 15 August 1928, the ICSB (Internationaler Correspondensschachbund/International Correspondence Chess Federation) was created under the leadership of Erich Otto Freienhagen (Berlin), which had existed in a loose form since November 1927.
The founders were: R.Dührssen (President), J.Keemink (Vice-President), H. von Massow (Secretary), K.Laue (Teasurer) and L.Probst (Managing Editor).
IFSB European Olympiad: the Hungarian Team (Balogh, Nagy, Szigeti, Barcza, Boros and Szucz) won the Final (1937–1939).
When the Second World War began, the IFSB Board decided to discontinue its activity.
von Massow (General Secretary) ICCF, the present successor of the IFSB, is a federation of national member organizations.
ICCF is closely co-operating with the leading world chess organization FIDE.