Antique table lamp, brass with an opaline glass shade

Attractive table lamp purchased in France (no French bayonet socket). The lamp is thought to have been made around 1900 (no manufacturer’s mark etc. to be found). However, it is a table lamp with a lovely patina, which works and has an antique charm.
Condition: Good condition; the glass shade has no damage or chips, and the lamp body is also undamaged. Minor signs of wear. We have not replaced the socket, switch or cable.
Dimensions: Height 36 cm, diameter 20 cm