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.

My mum used to have a few for sprinkling in the Christmas pud; although I can't remember ever seeing them in circulation. Here in the Channel Islands we had our own 3d bits. In Guernsey they were nickel silver with a scalloped edge and in Jersey they were round. The latter reason was why we never had 3d slots on our pay-on-answer paypghones.

I can just recall the silver threepenny bit in the Christmas pudding, but I think they'd all been lost by my adolescence. I don't know about the buying power of the dodecagonal version, but I can remember being able to buy a poke of chips for 3d around 1960.

In 1960, 3d was the standard child fare on an Edinburgh bus, 6d for adults. I remember my grandmother once showed me a silver thruppence, but I don't remember what it looked like. But here's a site with more info.

I'm pretty sure I remember seeing a silver 1.25p piece when I was very young, but I don't think we still had them for the Christmas pudding. I expect INJ had eaten them all.

CdM, you just made milk come out of my nose. I wouldn't have minded so much, but some of the cornflakes I was eating as I read took the same route.

[SM] I'm re-assured that you were eating cornflakes at the time. I'd be worried if this was a phenomenon that could occur spontaneously.