Army Frogman - T-Shirt Colour:Sports Grey Siebe manufactured his first 'closed'

Siebe manufactured his first 'closed' diving helmet in 1840

HMS Vernon and President of the Mine Warfare and Clearance Diving Officers’ Association at the time of signing

The Mark V diving

first as Staff Officer (Tenders) and then as Officer-In-Charge of the Seamanship School

meaning no more lookalikes

Army Frogman - T-Shirt Colour:Sports Grey Siebe manufactured his first 'closed'Material: 100% cotton.* Seamless twin needle collar. Taped neck and shoulders. Tubular body. Twin needle sleeves and hem. Tear out label. Weight: White 170gsm. Colours 180gsm. *Ash 99% cotton 1% polyester. **Midnight, Dark Heather, Heather Sapphire, Graphite Heather, Lilac, Russet, Safety Pink, Sunset and Tweed 50% cotton 50% polyester. ***Antiques and Sport Grey 90% cotton 10% polyester. Image contains a representation of a Kirby Mogan Superlite