32 Worm Gear and 27a 57 Tooth Gear Plastic Original. Plastic with brass bosses. Meshes at 1" pitch to give 57:1 ratio. Original Meccano.
Meccano Part 32 Worm Gear Standard Original
Meccano Worm Gear, part 32
Meccano Brass Worm Gear Part 32 Bright
Meccano 2 X #32 Worm 1921-26 sgl tap MFEA stamp
100 x Meccano Part 37 Brass Cheesehead Bolts And Square Nuts Part 37b 37a
50 Meccano Part 37b Bolt Zinc Original