While Googling around I stumbled across this website with a couple pics of a Lambert MK2 frame. Joe Bell was apparently selling them at a San Diego swap meet.

http://howtostretch.com/bikegalleryforsale.html

Bike Frames from the one, the only Joe Bell: OK, saw my buddy Joe Bell at the San Diego swap meet, and like usual, he had some cool frames for sale. The Lambert was built by Bob Jackson, and takes a 3 speed rear hub! the orange one is kinda an all rounder, but has a long top tube (56 cm) so it would work best with portuer bars or drop bars, if you are built like a gorilla. I am posting these for him, he has more, btw, stuff that just takes up stuff in his shop but he does not market them. So, call him at (XXX) XXX-XXXX, and ask him about the bikes on Mark's web page. There were a whole table full of steel bobish bikes, some without paint, ready for your color! I get nothing out of this besides helping a friend out, btw.