The 1953 Review programme showed a STOKERS badge like this (on the left) with the words STOKER MECHANIC. Simultaneously, they printed a picture (on the right) alongside this one, which had the caption MECHANICIAN (NOT ENTITLED to Trade Pay). -
Addition of crowns and stars to branch badges.
In the 1977 Review programme, this badge was shown, now calling the Stoker an Engineering Mechanic.