НСБ-? (Электрометалл)

An elegant chandelier from the late fifties of the last century. The markings that we managed to find are on the lampholder mount. It contains the following information: "Electrometall, Tallinn, 220 V / 75 W, GOST 8607-57, 1959". The lamps, together with the lampholders, are placed horizontally in the cavity of the glasses, illuminating the room with a pleasant soft light, diffused by frosted glass cups and reflected from the ceiling. In order to remove the cover, it is necessary to unscrew the bulb and partially disassemble the lampholder. Moreover, this procedure has to be done regularly: after all, lampshades are an ideal place for collecting dust. The coating of the metal parts of the chandelier, unfortunately, has become dull with time and peeled off in places. But bakelite is still stable and shows no visible signs of degradation. Obviously, this is due to the "ideal" home operating conditions.