In 1952 when I went to sea, a Deck Boy or Catering Boy was on £10 a month, a 56 hour week, an Efficient Deck Hand, was on £24 a month, EDH was a man who had passed examinations in Seamanship and a Lifeboat certificate, for his ABs certificate, but had an increment of £1 every year for four years, then he became a full Able Seaman on £28 a month, that was a skilled tradesman.
This wage was similar for Stewards and Firemen when they had the sea time in.
Billy Hart in the 1947 strike was demanding £28 a month for ABs.