Opera glasses with five telescopic draws

Opera glasses with five telescopic draws, four of them sprung

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Opera glasses with five telescopic draws, four of them sprung
Science Museum Group
© The Board of Trustees of the Science Museum

Opera glasses with five telescopic draws, four of them sprung, marked "PATENT 1874"

Details

Category:
Optics
Object Number:
1989-266
type:
eyeglasses
credit:
Christie's South Kensington Limited