Luftwaffe oxygen mask. Relatively soft black rubber mask. Chamois leather lining. The elastics are present, but hardened by time. Metal hooks are complete. Flexible hose in perfect condition. Grip present. Markings A1-10-6701 Gr 1 BYD. Some wear and patina. Condition II+. Luftwaffe oxygen mask. Black rubber mask, still relatively supple, with chamois leather lining. Elastic straps present, somewhat hardened with age. Metal hooks complete. Flexible hose in perfect, pliable condition. Plug present. Marked A1-10-6701 Gr 1 BYD. Shows some wear and patina. Condition II+.