White opalin glass mushroom lamp 70s

Classic mushroom lamp, in white opalin glass. In perfect condition. Made in the 1970s, but I'm still trying to discover the manufacturer. The lamp has a sticker under the base, the GK bed logo. The lamp is 25 centimetres (about 10") high and 20 centimetres (about 8") wide. Underneath the base, it is indicated that the lamp is suitable for 220V. It is also ideal for use on a 110V network, but the socket can be exchanged or used in combination with an adapter. The lamp uses an ordinary E14 bulb, 60W max.