These is used to mount the flat bar style window adjustment arms for late 1970s trailers that used a barrel shaped handle/knob to the window frame. 

 

Dimensions: 11-1/8" long

Original vintage part

What's included: mounting rail with sliders shown

What's not included: adjustment arm, arm mounting bolt

Yup... Its vintage alright.

Please keep in mind that these parts are original from a vintage camper. We guarantee that the part will be totally functional (unless specified as non-working in the description), but it may have the varying signs of wear that these things tend to have such as: discoloration, paint/caulk residue, rogue scratches & rivet hoes. You may receive an item with a different but reasonable amount of wear from the one shown. Also, please note that when these trailers were assembled, there was some inconsistency with the alignment of drill holes. Rivet holes may not line up with your exact trailer. Each of these items is backed by our 14 day return policy if you’re unsatisfied.