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Filter: FORMAT_NUMBER_ORG of PH 7114 Box 2, Sleeve 3
| Date: | 07 22 1929 |
|---|---|
| Description: | Left side profile view of a 7-cylinder Comet air-cooled radial piston engine and propeller on a Kreider-Reisner C-4 Challenger aircraft. A design of the Co... |
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