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2ft 4 Fold. Inside edges bevelled.
Scales marked 1/6, 1/3, 2/4, ¼, inch, and inch.
All pins present.
Quality construction, Nickel silver knuckle, face plates and tips, steel rivet, boxwood.
G. Cartwright and Son. 1840 Optical Instrument maker Preston.
The price includes postage within the UK.