Max Henry wrote:
[John Rowland]:

The old light bulbs that they had (have?) in Routemasters had left hand
threads - this was to stop anyone pinching them to use them at home.

That sounds like an urban myth, bus bulbs are hardly likely to be 240v are
they?

Dunno about that. I do know that the light bulbs used on the New York
City subway have a left hand thread, at least according to the New York
Transit Museum.
--
Michael Hoffman