Vintage Gentex Military Flight Helmet Shell w/ Visor Part No. 7747264-90 HGU-26 | eBay
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PIONEER - Pilot Helmet This United States-made helmet was used by the pilots and aircrew of the RSAF's second-generation helicopters, which included the AS-332 Super Puma, the Bell 212 and the UH-1H
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Vintage Gentex Military Flight Helmet Shell w/ Visor Part No. 7747264-90 HGU-26 | eBay