A more unusual H-Type Oxygen Mask with Horseshoe harness. Size Large and dated 3/62. The mask has the adjustable metal 'horseshoe' harness for use with flying helmet hook attachments. The rubber is in generally good condition with good shape. However there is some cracking around the microphone, exhilation valve and harness attachment lugs. Quite clean overall. The harness, microphone, loom and socket are all in good condition overall.