I have two cars for sale. Both are made by selden mast, one is the sliding car type that fits standard 1.25" tracks, the other is a fixed type that bolts onto the mast, the base of which is slightly curved to fit the curvature of a mast. Both are in excellent condition, with barely any sign of use. By the looks of them, they might never have been used. Both are full stainless steel. Diameter measurement is 1.1875" ( one and three sixteenth), both are the same.
The forespar versions sell new for $650 for the sliding type, and $350 for the fixed type, however I can't find information on what these selden mast versions go for. I'm sure more, because they look to be better built.
I'm selling the sliding type for $400 and the fixed for $200. I can sell them separately or together. Located in Bellingham, wa, but happy to mail them anywhere.