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Outline of Infinity Balance
ARCHIVAL ITEMS
instructions
Turville, A. E.
Europe: United Kingdom, England, London
September 1946
paper; cardboard
overall: 229 x 149 mm

Instruction book (1st impression) for the 'Turville Infinity Balance and General Subjective Unit' sight-testing apparatus. Printed in black on 51 pages, bound in semi-hard blue covers with over cover of brown paper. Illustrated with photographs and diagrams. Includes also a handwritten slip dated 4 March 1946 listing step-by-step procedure for an examination.


2007.287

Bequest of Mr D. W. A. Mitchell FCOptom, 2007



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