Typical 380 volt tilted switchboard panels. In Russian (ask us if in doubt)/Tipovye paneli raspredelitel'nykh shchitov prislonnogo tipa 380 vol't. MPS USSR. Metroproject. Glavonnelmetrostroy. Compilation # 246 of the Electrical Design Department. Moscow 1948. Prof. 3p. SKUalb560aef83ad70377e.