9cm x 14.5 cm , pack of 25 sheets.
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Ground & polished faces, edges ground. Size 50 mm high & 45 mm wide.
Made of optically flat plates cemented together. Dimensions 50 x 50 x 50 mm
Kit includes 5 liters round bottom flask with cork, support ring, fluorescein and 3 lens to demonstrate long, short and normal sight.
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