Holophane DC100 wall or ceiling light, 1960s, thick, frosted, iced glass

Superb large holophane DC100 wall or ceiling light. 1960s, perfect condition. The glass is thick, with a frosted and icy appearance. Marked on the glass "holophane n° 4969-b" "made. In France". See numerous photos. The socket is present, provide electrification depending on whether you want to use it as a wall or ceiling light. Length and width: 26.5cm depth: 9.5cm.