Oops - typo on the price!
Sorry, my intent was to give the $100 discount to APUG members, the originally posted price is for the "general public" with the photobucket pics.
APUG member price is only $275 plus shipping, and remember,
it includes the original Rodenstock 50mm X 0.75mm threaded mounting flange. Payment by PayPal or USPS money order. Please respond by PM.
More details that I neglected to put in OP: Current model Rodenstock 150mm F/5.6 enlarging lens in perfect condition with the original 50mm x 0.75mm threaded mounting flange and front and rear caps. The coatings and finish on the metal parts are perfect. There are no scratches, dings, abrasions and everything is clean. The glass is clear and spotless and the aperture ring moves smoothly with positive click stops. The link for pics above will have MANY pics for every detail you could want to see. It still has the original box (though honestly the box has seen better days).
I have handled it carefully to keep it in like new condition. This is a 6-element multi-coated 4 x 5 format enlarging lens of superior quality. This lens is currently $755.95 new at B&H in NYC. (see it here:
http://www.bhphotovideo.com/c/search?Ntt=rodagon+150mm&N=0&InitialSearch=yes)