I did my gliding course at SM, over the period of the Cuban Missile Crisis. Arrived with shiny PPL from flying scholarship, told I would have A&B on first day, which I did, from then I was a helper not a flyer, except for sitting in on hangar flights. Great week. 50 years later when I finished gliding course in UK, BGA found my documents and issued a replacement for a fiver, not a new A&B cert for thirty odd quid or whatever it is now.