Accession No

4480

Brief Description

range finder, type F.T.32, by Barr and Stroud Ltd., English/Scottish, c. 1921

Origin

England; London and Scotland; Glasgow

Maker

Barr and Stroud Ltd.

Class

optical; military

Earliest Date

1921

Latest Date

1921

Inscription Date

Material

metal (brass, steel, white metal); wood (two types); plastic (bakelite and one other); glass; cloth; rubber; paper

Dimensions

tube length 1115mm; maximum diameter 100mm box length 1220mm; breadth 275mm; height 190mm

Special Collection

Provenance

Gifted by the Department of Geography, University of Cambridge, on 29/06/1994. Presented to the Department of Geography, University of Cambridge, by J.M. Wordie, Master of St. John’s College, University of Cambridge.

Inscription

‘Barr & Stroud. Ltd.
Glasgow & London
RANGEFINDER No 26321
TYPE F.T.32 BASE 1m.0
British Patent No 180028/1921’ (brass plaque on tube of instrument)

Description Notes

Painted metal tube with two hinged wooden legs (one missing) and central socket for metal tripod. Central eyepiece with rubber shade and an objective at each end (base length 1m); right eyepiece has a horizontally split field, left eyepiece shows range-finding scale (illuminated by raising hinged lid above eyepiece). Knurled screw for adjusting prisms. Range read by scale in yards, divided 250 - 20000, numbered 250, 260...500, 550, 600...1000, 1100, 1200...2000, 3000, 4000, 5000, 10000, 20000. Lugs for holding objective lens caps (one cap missing). Brief instructions for use on left-hand end.
One spare eyeshade; plug, cable and switch for illuminant for scale; plastic wallet in box holds instruction booklet (booklet present but the wrong one, because too early). Wooden container with two spare bulbs.
Fitted wooden case with brass hinges and lock, and steel fasteners and carrying handles. Paper label in lid giving details of presentation to Department of Geography by J.M. Wordie, Master of St. John’s.

Condition good; incomplete (one supporting leg missing)

References

Events