Set of 3 (three) coaxial cable, with GR-874 to male BNC connectors, made by General Radio Co., U.S.A. around 1970 (vintage) (Fig. 1). Cable type Belden 8259 RG 58-A/U, very flexible. New, taken out of a larger bag with several such cables, the original box shown separately (Fig. 2). Length 3 ft, characteristic impedance 50 Ω. Wide bandwidth, up to at least 1 GHz (the 3 ft cable signal attenuation at this frequency is 0.7 dB). Voltage rating 1900 V, peak value. The technical data are taken from the Belden's site, please search for catalog.belden.com/techdata/EN/8259_techdata.pdf. The GR-874 and the BNC connectors have a much higher upper frequency limit (9 GHz and 4 GHz, respectively, see Pasternack connectors' site). For use in high frequency or short pulse signals in an electronics or physics laboratory.