E.R. Calthrop's Patent Safety "Guardian Angel" Parachutes / E.R. Calthrop's Aerial Patents

Made:
1919

E.R. Calthrop's Patent Safety "Guardian Angel" Parachutes / E.R. Calthrop's Aerial Patents, Ltd. [1919? Brochure bears descriptive text and three photographic illustrations showing the original 1916 A1 model, the current D4 (the standard type then in use by the Air Ministry), and an airman descending from a D.H.9 aeroplane. 4p. on 1 leaf]

Details

Category:
Archive
Object Number:
1994-1064
Measurements:
: 340 x 420 mm
type:
brochure
credit:
Duck, W.

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