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Keystone B-3
Keystone B-3 · USAF· Public domain

Keystone

Keystone Aircraft

🇺🇸 United States ·4 types· first flights 1927–1928· 123 built

Sorted by number built. Sources: Wikidata, Wikipedia.· Keystone on Wikipedia· Logo: Keystone Aircraft Corporation, Public domain. Photos from Wikimedia Commons.Maker logos come from Wikimedia Commons. Most are public domain as simple text or shapes, but they remain trademarks of their owners and are shown only to identify the maker. All makers.

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