Ads for the new B gears sets were in the MM in 1956. The new gears "B" set replaced the old gears "A" set in 1956( for real this time!). Set contents are now: 2x #25, 2x#26, 1x#27, 1x#27a, 1x#28, 2x#29, 1x#32, 4x#59, 1x#94, 1x#95, 1x#96a, 1x#120b, 1x#230 and 2x#231. The last 2 parts are new for 1956 or were they around in 1954? Maybe they were waiting for them in the aborted Type 3 launch?