DescriptionHeinke Hans Hass Diving Mask and Snorkel Tube.jpg
English: This image illustrates a Hans Hass diving mask and a snorkel tube from the 1950s Heinke range of underwater swimming equipment.
Hans Hass mask catalogue description: "Manufactured in a high grade black rubber which ensures that the feather edge sealing surface retains its shape. The strap has ridges moulded into it which prevents it from pulling through the buckles when wet. The laminated safety glass is retained in its housing by a chromium plated retaining strip."
Snorkel tube catalogue description: "This is a breathing tube in its simplest form and is of the type used by the majority of snork divers. The tube is of bent anodised aluminium and is fitted with a robust mouth piece."
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