My infant school, which was attached to the junior school I also attended (built in the 60s, I think) had a hall shaped like a 'thrupenny bit' and was known locally, for a time as 'The Thrupenny Bit School' to differentiate it from the junior school buildings, although there's no reference to it on Google, as far as I can find. It was Lacey Gardens Infant School, if anyone is interested...

[Rosie/Phil] Despite over two centuries of metrication the French still use old measures if you are worried about their eradication from the culture. They often use puce for inch, livre for pound (weight) and of course the demi for a half (pint).

[Software] Indeed, on a few occasions in France I've forgotten about that and have asked for a demi when I wanted a half-litre of beer.

(Softers) I know. Did you mean pouce? :-)

[Rosie] Oui.

[penelope] A pre WWII threepenny bit, or a post-blackout one?

(SM) Few people, even of my age, have seen the silver threepenny bit. I was once given one as change by a bus conductor about 1953 but had to spend it to get home, or walk two miles. I have found another one (1920) in my heap of old coins. They're tiddlers, 5/8" across. The chunky version was around in 1940, as I have one, and two more from the sixties. They're nice. Equivalent in the fifties to about 30p in today's money.