Thanks

I'd wondered whether people had ever held out pans but I hadn't thought about pan being Spanish for bread.

Although the word bread was a fashionable word for money in the sixties (probably because it was hip for people to talk as if they came from California, man) I don't hear it used very often here.

I suppose the Spanish link (pan/bread) would be a reason why it didn't travel to the UK - we have relatively little immigration from Spain or South America.