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Ferree-Rand Test Chart Projector
TEST CHARTS
projector
Bausch & Lomb
North America: USA, New York, Rochester
c.1942
metal
overall: 267 mm x 658 mm x 150 mm
1999.3047
TEST CHARTS
projector
Bausch & Lomb
North America: USA, New York, Rochester
c.1942
metal
overall: 267 mm x 658 mm x 150 mm
Black metal instrument with rectangular base, tapering tube and semi-circular lamp unit. Adjustable diaphragm at narrow end of tube. Wide end of tube features vertical red and green "Chromatest" slide and horizontal slide bearing test letters and circular diagrams. Lamp unit features tall bulb and reflecting mirror. Electrical flex and two-pin plug.
1999.3047
Frank Dickinson Collection