Timber trial case with glass lid

Catalogue Number: 1313
Timber trial case with glass lid
Category: Equipment
Sub-Category: Trial lens case
Year Of Publication/Manufacture: c1900
Time Period: 1900 to 1939
Description Of Item: Timber trial case with glazed lid. Spheres to +/- 6.50, Cyls to +/- 4.50 Replacement red cloth lining. W: 49cm x D:27.5cm x H:6.0cm.Includes Moswheel trial frame with wheels to rotate cylindrical lenses (see also Cat No 949). Frame stamped 'MOSWHEEL PATENT No 1254/ MADE IN PRUSSIA/ 60m/m'. Nickel alloy, X-bridge, non matching temples. Also PD Rule calibrated in inches & millimetres.
Historical Significance: Used by Melbourne optometrist Alan Ormsby Ralph early in the twentieth century.
How Acquired: Donated by Mrs Gwen Marshall, daughter of optometrist Alan Ormsby Ralph
Date Acquired: c2000
Condition: Fair, several lenses missing, no catch on case
Location: Archive room. West wall. Unit 5 Drawer 5

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