Diploma awarded to The Green Engine Company Limited / The Royal Aero Club of the United Kingdom
- Made:
- 1913
[Diploma awarded to The Green Engine Company Limited / The Royal Aero Club of the United Kingdom. 1913 Feb 12. 1p., ms. signed. Awarded for the performance of a 60 H.P. vertical, 4 cylinder, water cooled engine which in 1911 won the Alexander prize of 1,000. (The aero engine is in the museum collection, inv. no. 1913-427]
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