Dewch i brocio'r cof yng nghwmni John Hardy, wrth i ni edrych ar swyddi. John Hardy heads back to the bygone years with a look at jobs.
Discover 11,128,835 listings and 277,897 playable programmes from the BBC
Dewch i brocio'r cof yng nghwmni John Hardy, wrth i ni edrych ar swyddi. John Hardy heads back to the bygone years with a look at jobs.