A Dutch Ophthalmo-dynamometer instrument by Schmeink, C 1900
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An Ophthalmo-dynamometer instrument. By pressing the black button you can read the pressure force on the scale from 0 to 480 grams. It is manufactured by: Surgical instrument makers / A & B Schmeink / Amsterdam”. The instrument comes in its original case and dates around 1900. Measurements case 24 x x 4 cm
