Thanks everyone- I did check the Graflex site. On this camera, the word "Special" appears only on the lensboard that the 135mm Schneider Exenar is mounted on. The other lensboard with a Schneider SA 65mm doesn't have "Special" written on it. I did read somewhere that these Schneider lenses reduced the cost of the camera some $20.00 "back in the day" so Dan From's reply is correct, albeit a somewhat strange marketing ploy on Graflex's part.