Vintage Peugeot conversion help and tips please

Appreciating the pug-love on this thread.. I've just bought a beaten-up peugeot which i think is from 1979-83 from the head badge. I've started stripping it down but I don't know how to tell if it has a French or English BB? There aren't any numbers on the cup or anywhere else. Any ideas?

The cups unscrew different ways depending on whether its English or French. Also, around that time you may have Swiss (Mines a 1980, with swiss BB cups) which can be recognised by a groove around the outside of the drive side cup (which is threaded in metric but same dirrenction as british) Edscoble left a link at the start of this thread with details..