School wall clock from Standard Electric 1970s

Wall clock made by standard electric in u.s.a. During the 1970s-1980s. It features a black iron frame, a metal dial, an aluminium hands and curved clear glass cover. The piece has been converted into a battery-powered clockwork and requires only one aa-battery. The diameter of the clock is 33 cm.the weight of the clock is 1, 5 kg.