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.
I have a large quantity of First Day Covers of Germany for sale for which a have a list available. Email me if you want a copy.
I also have special event postmarks available on covers but these are not yet listed fully. If you are interested please email me at firstdaycovers@tiscali.co.uk