Check the listing for details. Canadian RCAF Bone Dome Type H-4 Pilots Helmet With Graffiti Size Medium. Condition: Used. Listed at 216.70 USD. Canadian RCAF Bone Dome Type H-4 Pilots Helmet With Graffiti Size Medium Step into a piece of aviation history with this Canadian RCAF Type H-4 Pilots Helmet, size medium. Known affectionately as the Bone Dome, this helmet is a rare find, embodying the spirit and toughness of Canadian Air Force pilots. The Type H-4 model is renowned for its durability and ergonomic design, providing both protection and comfort in the demanding environments faced by fighter pilots. Adding a unique touch to this particular helmet is the graffiti that adorns its surface, offering a glimpse into the personal flair and individuality of its previous owner. Whether youre a military history enthusiast, a collector of aviation memorabilia, or someone with a passion for unique artifacts, this helmet is sure to be a cherished addition to your collection. Complete your historical display with this authentic piece of air force heritage.