Original French MS 22001 Oxygen Mask, size is GT = Large , Date 1972 , with original Ulmer MC-3A Oxygen Mask Hose Fitting and special mask receiver (see pictures),very good condition considering its age,no microphone and no communication cable available (see pictures), note that all our items are pure collector items or display items. The items are not tested for real use and have no aeronautical exams or clearances. Use is at your own risk !