Signedon front: KOLSTER
on face of meter: WESTON ELECTRICAL INSTRUMENT CORP., NEWARK, N.J., US.A. / MILIAMPERES D.C. / WESTON / MODEL 506 TYPE F32 PAT. 1,579,849 1,597,256 1,635,595 1,661,214
on plate inside: KOLSTER / RADIO RECEIVER / MODEL K-43 / SERIAL NO. 10358 / 100-120 VOLTS 50-60 CYCLES 85 WATTS / LICENSED ONLY FOR RADIO AMATEUR, EXPERIMETAL / BRANDES LABORATORIES INC. / RADIO CORPORATION OF AMERICA / AMERICAN TELEPHONE & TELEGRAPH CO. / GENERAL ELECTRIC COMPANY / WESTINGHOUSE ELEC. & MFG. COMPANY / LEKTOPHONE CORPORATION / LOWELL and DUNMORE / U.S.A. NAVY DEPARTMENT / MANUFACTURED UNDER THE PATENTS LISTED WITHIN / OTHER PATENTS PENDING / MANUFACTURED BY / BRANDES PRODUCTS CORP. / FOR / KOLSTER RADIO CORP. / NEWARK, NEW JERSEY
on condenser: AEROVOX / TYPE 200-S / FILTER / CONDENSER / Capacity - 4 mfd. / Working Voltage / 200 V. D.C. / 125 V. A.C. / b1114 K (sideways) / MADE IN U.S.A. / BY / AEROVOX WIRELESS CORP. / BROOKLYN, N.Y. U.S.A.