Here is the Secret Rendezvous outfit from 1973 - 1975.  It is such a boring and common set that I have actually gotten rid of at least six of these sets through EBay or trades.  Even Derryl DePriest's book (which by the way is a must-have for any collector) only mentions it in the caption of the picture.  Nothing exciting here.  My particular one has some fading on the visible portion that is different from the fabric behind the picture flap so it will always remain in its box. The only good thing I can remember about this set as a kid is that it had a flare gun.  Good weapons were rare in the AT sets and the flare gun often became the last resort to foil some evil plan.