Signedon plate on bottom of base: Western Electric / REG. U.S. PAT. OFF. / 6-A RECTIFIER / VOLT 103-127 60 AMP 0.5 CYCLES 50-60 / MADE IN U.S.A. SERIAL NO. 121
Inscribedstamped on base of large cylinders: PATENT / 1604996
stamped on side of cover: SPRAGUE / 16-475 / CL 16 12 / U.S. PAT. NOS / 1,714,191-1,916,586 ETAL 2 / MADE IN U.S.A.
stamped on side of condenser: .25 MF 141 D. CONDENSER
stamped on base of transformer: TRANS ### A
painted on base of transformer: Western Electric / REG. U.S. PAT. OFF. / MADE IN U.S.A.
painted on base: WARNING / USE 1 AMPERE / FUSE ONLY
FunctionConverts AC to DC.