The year 2014 marked the 50th anniversary of the first year of operation of the Germany & Colonies Philatelic Society following the amalgamation of the Germany & Colonies Stamp Club (established 1947) and the Stockton German Study Group (1960).
The G&CPS celebrated its inaugural year in 1964 with the first Germania Posta philatelic exhibition held in Stockton.
This Envelope cancelled on 05-8-96 with DDR 1990 MiNr 3350 I have had to zoom in on the stamp in the hope that the date can be seen. Surely the stamp was 5 years out of date and illegal to use. Can any one help on this