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2 Solid and 3 open brass cog wheels ) sizes 1½ “, 1¾”, 2”, 2½”, 3¾ “ dia.

Brass cog wheels

1790-1819

Two metal tins containing cogs and chains for Massey Harris 21 combine, 1947.

Two Tins of Cogs and Chains for Massey Harris 21 Combine, 1947

3 Fine steel cog wheels, hole with slot in centre

Fine steel cog wheels

1790-1819

The Science Museum Group

Locomotion
Locomotion
National Railway Museum
National Railway Museum
National Science and Media Museum
National Science and Media Museum
Science and Industry Museum
Science and Industry Museum
Science and Innovation Park
Science and Innovation Park
Science Museum
Science Museum
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