NOS Vintage 1958 Harley-Davidson Model C Helmet Set - Complete 98090-58 Kit with Factory Box, Sleeves & Stamps. A true complete assembly featuring the original fiberglass half-shell helmet, the factory snap-on sun visor, the clear bubble-style face shield, and both original mounting straps. The bottom of the original cardboard box features crisp, distinct historical markings. It bears the official #2 H.D. internal factory distribution stamp alongside the original circular Box Maker’s Certificate (BMC), proving total authenticity.
Size in Box: 11 3/4" x 8 3/4" 7 1/2"
Hat Size 7: Equals a head circumference of 22 inches (55.8 cm).
Corresponding Helmet Size: Usually falls right between Small (55–56 cm) and Medium (57–58 cm).
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