I don't think I've ever seen a key card before, so thanks for showing.
Numbers 3 & 4 make interesting reading as being Lost or stolen, nothing to do with that army major who was mentioned in an earlier thread, be a bit young then!
What do the letters S/O stand for? It's probably obvious but not to me. Presumably the other abbreviations are for their respective disposal locations, I see one went to the Federation Army. All a quick search gives for that is the US Army?
As for the others what are those organisations?
MOS = ministry of supply?
MOA = Ministry of Agriculture?
BER?
MELF?
WD = war department?
Lots of abbreviations on this card, just a bit curious