(Phil) What about the threepenny bit, everyone's favourite coin in those days? There's even a building named after it.

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? :-)