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roll-top trial case
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial case
William Gowlland Ltd
Europe: United Kingdom, England, Surrey, Croydon
1915
wood

Wooden trial case with downward-pulling roll-top shutter, removable lens rack and two wooden drawers. Contains 59 concave spherical lenses in white metal frames with handles (one gap), 60 concave spherical lenses in yellow metal frames with handles, 34 concave cylindrical lenses framed as above (two gaps), 36 convex cylindrical lenses framed as above. Also 12 prisms, one empty yellow lens frame, 25 occluders/filters, small key, large key, white metal lens holder with simple wire loop handle. Also trial frame in shiny white metal with half eyes and straight sides with end loops. Also instrument by Gowllands consisting of two round lenses mounted onto a sliding bar with a black ebony handle.


1999.3124

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