​​Original oil and gas vintage magazine ad for APPLETON ELECTRIC COMPANY.  XJ conduit expansion joints relieve the strain of expansion and contraction on long runs of rigid conduit.  Metallic packing and a bonding jumper assures the entire system remains a continuous electrical conductor.  Main office was located  at 1701 Wellington Avenue, Chicago, IL.
This 1959 one page old petroleum industry trade advertisement would display beautifully matted and framed.