Old unit not really sure it works. Looking looks in good shape. 
Fox Valley Engine Power Timing Light 825 / Sears / Craftsman timing light.
Vintage Automotive Timing Light, Milton # 1241 DC power timing light
SUN ANALYZER TIMING LIGHT NOS NEW OLD STOCK SUN POWER TIMING LIGHT
NOS VINTAGE Milton Automotive Timing Light 1241 DC Power Timing Light USA Cars
Vintage Montgomery Ward D.C. Power Timing Light w/ Clamps Sears DC
Vintage Penske Power Timing Light 244.2115 Sears Roebuck With Box
