1970 hard plastic kitchen drawer slide
A quick learner from Lexington, ky says:
March 25, 2014
This part glues to the side of the cabinet. The hard plastic drawer slides on this part. The notch at the top secures the drawer. I cannot find this anywhere. No manufacturer on part
Dave from SWISCO responded:
March 26, 2014
This looks a lot like our 32-312. Check it out and see if you agree.