Originating in the Ruhr mining region, this model of protective leather helmet became increasingly common across German mines starting in the early 1920s. This particular helmet shell is made from two quarter sections of sturdy full-grain leather, stitched together lengthwise. The seam is additionally reinforced with a sewn-on leather strip. Each side features three ventilation holes, punched and reinforced with hollow rivets. A leather visor is sewn onto the front and secured at both ends with rivets. There is a punched hole on the left side, which was used to hang the helmet. The thin leather lining is sewn on from the outside left, folded over the bottom edge of the helmet to the inside, and shaped into six rounded tabs above a surrounding sweatband area. The ends of the tabs are perforated, allowing a cord (not included) to be threaded through to adjust the fit of the helmet. This helmet is made for a medium-sized head with a circumference of 56 cm. The leather has retained its elasticity. Overall, considering its age, the helmet is in excellent condition, with only minor wear to the curved tabs of the liner. Weight – 390 gr. Many Thanks for Looking!