Beautifully ornamented vintage trivet, silver plated and extendable

Attractive trivet, silver plated, extendable and in very good condition. Probably England, 1950s/1960s.
Condition: The trivet is undamaged, with only minor signs of wear. The extension mechanism works perfectly.
Dimensions: Diameter when closed 23 cm, extended 27 cm, height 2 cm