This lock is used on vintage Avion, Mobile Scout, Aljoa, Mallard, Shasta, Yellowstone, Nomad, Serro Scotty, Kenskill, Siesta, Aristocrat, Spartan, King, Vagabond, Va-Ka-Shunn-Ette, Play-Pac and many other vintage travel trailers throughout the 1950s and 1960s and into the early 1970s.

This is not a substitute for the obsolete Bargman L-77 vertical lock that looks similar and was used by Airstream and Silver Streak in the late 50s up to about 1961.