Hello, I just registered on this forum (but been reading this thread for a couple of months) and want so say that your collections and knwoledge are very impressive!
I find this thread as the best place for source of information on vintage Nagra recorders.
So here I am saying hello to everyone.
By the way, have you ever heard the rumor about J.F.K. administraton buying first Nagra spy recorders in Japan? Because Nagra sound quite Japanese. After reading this thread I know it's just a rumor. But that is what I heard in one interview (not with Kudelski himself) on radio some time ago.