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Wooden eyesight tester

1860-1900

Wooden eyesight tester

Wooden eyesight tester

Snellens eyesight test, National Union of Railwaymen

1925-1935
Eyesight Testing Equipment, rectangular block with wooden handle. Painted white with various patterns of black dots. For testing eyesight of potential engine drivers. 19"x2" x2"

Eyesight Testing Equipment

Eyesight testing equipment, comprising strands of different coloured wools on a folding baton, weighted with numbered lead tags. Used to test for colour blindness in railway locomotive drivers, firemen and signallers. Colloquially known as 'Thomson's stick'.

Coloured eyesight testing equipment