Be sure the get the Relfex II (or at a minimum, the Reflex IA) with Anastar. The original Kodak Reflex mostly had the Anason (or Kodak Anastigmat), a good quality triplet but nothing special; in addition, the original Reflex didn't have the Fresnel focus screen and lacks the frame counter. The 1A was a factory upgrade of the Reflex that added the Fresnel, plus made a minor change in the supply spool chamber. The Reflex II was the real jewel -- all of these had the Anastar from the factory (some of eh earliest had the same glass marked Anastigmat Special) though it's surely possible that lenses have been swapped in the intervening fifty-plus years. The Reflex II has the frame counter, of course, and also a shutter with X synch and 1/300 top speed (the Reflex had M synch only, AFAIK, and 1/200).

The differential in price is only about $20, generally, and the Reflex II is a much nicer camera to use. I've got two, though one has a broken viewing mirror -- I'll get that fixed after a while...