I am trying to identify a Buick jack that I bought at a swap meet many years. Based on my research so far it is dated January 6, 1969 as the 37" long "RH INC." tubular column is stamped "A 6 69" near the bottom end. The lug wrench is for 13/16" lug nuts. The hook measures 13 1/8" long and does not have any stampings on it. I believe that it might be correct for 1969 Buick Electra or Wildcat models. Attached a some photos.
Dave