Polished 90 mm dia & 20 mm thick approx.
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Optically worked, ground edges
Kit includes 5 liters round bottom flask with cork, support ring, fluorescein and 3 lens to demonstrate long, short and normal sight.
Having measuring range 0-32% sugar scale. Nicely packed in velvet box with zero adjusting screw driver.
Rectangular, all sides polished, made from slightly greenish glass free from bubbles Dimensions (a) 75 x 50 x 12 mm (b) 75 x 50 x 18 mm (c) 100 x 60 x 18 mm (d) 115 x 65 x 18 mm (e) 125 x 65 x 18 mm.
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