1967-1968: Siebe Gorman stops using the tradename 'Siebe Heinke'. Unlike Siebe Gorman, who had only one series of serial numbers for their diving helmets, except for the last productions (which were meant most probably for the Russian Navy), Heinke used many series of serial numbers for them. Recent discovery: A fisher in southern sea of Myanmar recently claimed discovery a right side of diving shoe labeled G. F. Heinke 42 ft deep in the sea, early September of 2022. It weighs about 5 kgs and is 13 ft long. References External links Heinke C.E.Heinke The Heinke Trophy Award Link to early 1950s advertisement for a Heinke-Lung (aqualung made by Heinke Similar with Hans Hass and Lotte Hass Heinke Lungs Heinke Dolphin Wetsuit Heinke Delta Dry Suit Heinke Falla Wetsuit Diving equipment manufacturers Diving engineering Defunct companies of the United Kingdom Manufacturing companies based in London Underwater diving in the United Kingdom