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Home Made Heterophoria Test Mid-Late 20th c. View |
Maddox Wing Test Mid 20th c. View |
Maddox Wing Test Early-mid 20th c. View |
Maddox Wing Test Early-mid 20th c. View |
Maddox Wing Test Early-mid 20th c. View |
Maddox Wing Test Early-mid 20th c. View |
Maddox Wing Test Clement Clarke Ltd Late 20th c. View |
Maddox Wing Test Mid 20th c. View |
Maddox Wing Test Theodore Hamblin Ltd 1920s View |
Maddox Wing Test Hamblin (Instruments) Ltd Mid-Late 20th c, View |
Mills Near Balance Test 1950s View |
Reading Card from a Foriagraph Ellis Optical Co 1930s View |
Rosen Foriagraph c.1930 View |
Rosen Foriagraph c.1930 View |
Rosen Foriagraph c.1930 View |
The Foriagraph 20th c. View |
The Improved Foriagraph Unit Elliott Optical Co Ltd 1930s View |