I have photographed the de Havilland DH.4 examples at the Evergreen Aviation Museum and the NMoUSAF. During WWI the plane was known as the Airco DH.4.

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de Havilland DH.4B

NMoUSAF 2018

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de Havilland DH.4

Marine Corps Museum; Quantico VA 2026

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de Havilland DH.4M-1

Evergreen Aviation Museum 2015

Evergreen Museum 2018