Light switch (Boscombe East BH7)

Bit of a long shot but does anyone have a switch like this one hanging around in a draw? It is the on/off switch for a bedside light. Apparently quite old so not made anymore. Have tried both Castles and The Electric Centre in Christchurch but no luck. Seems a pity to throw the whole light away just because the switch isn't working. Keeping my fingers crossed.