Originally Posted by
Mogwi
Mogwi senior used to do his RNR annual training interpreting aerial photos at JHQ Rheindahlen many decades ago; he called himself SNOG (Senior Naval Officer (Germany)).
Which must have come as a great surprise to the Captain RN who was Naval Attache in Bonn, now Berlin, unless of course your dad was a Commodore at least!
Good to see that the OP makes a clear distinction between acronyms and abbreviations such as STO.
Jack