In brass, a letter ‘B’ in a wreath. To the reverse two loops east-west. Also produced in anodised aluminium and cloth.

Introduced 1944. One of the series of ‘trade’ badges -‘A’, ‘B’, ‘C’ and ‘D’ granted on achievement of the required skill level in a particular trade; trades being grouped by technical difficulty, ‘A’ being the most demanding.

Below are the group ‘B’ trades in 1944. Note a further thirteen group ‘B’ trades not listed wore the ‘hammer and pincers’ trade badge instead (blacksmiths, fitters, welders etc).
This list should be considered a ‘snapshot’ as trades were added and removed over time.

Barge engineer
Boilermaker
Bricklayer
Clerk (shorthand writer)
Coach painter
Cutter, cinematograph
Dental mechanic
Dispenser
Electrician (power station)
Electrician (wireman)
Electroplater
Galvanizer
Hospital Cook
Laboratory assistant (pathological)
Lighterman (IWT)
Mason
Masseur
Miner
Miner (mechanic or driller)
Modeller (camouflage)
Moulder
Operating room assistant
Operator (excavator)
Operator (linotype)
Optician
Photographer (cinematograph or still)
Photographic developer
Plasterer (camouflage)
Postal worker
Projectionist (cinema)
Quarryman
Radiographer
Railway engine driver (diesel)
Watchmaker
Well borer