Just an addition....Also the SR/ Southern Region at places like Brighton /Hastings/ Folkestone and Dover were served by fish vehicles coming across on Kings Cross to London Bridge and Kings Cross- Victoria ( via the Widened Lines and Snow Hill ) freight services.. Also at the same time, late ,50s a regular weekend working ( one van ) from Grimsby with fish for Paris too. A lot of fish was transported around the country , like 'taking coals to Newcastle' , as species varied in different parts of the UK coastal waters .