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The Hospital Scotometer for Rapid Blind Spot Measurement
ARCHIVAL ITEMS
instructions
Ellis Optical Co
Europe: United Kingdom, England, Surrey, Croydon
Early-Mid 20th c.
paper
overall: 225 x 141 mm
1999.5812
ARCHIVAL ITEMS
instructions
Ellis Optical Co
Europe: United Kingdom, England, Surrey, Croydon
Early-Mid 20th c.
paper
overall: 225 x 141 mm
Book outlining the construction and use of the Hospital Scotometer. A 5 format, printed in black and white on four pages, stapled, with soft green paper covers. Illustrated with one photograph of the instrument in use.
1999.5812