Assertion: diver's gear | /r/HasProperty | tested to 48 fathoms
Facets:
value: in 1922
type: TEMPORAL
Source sentences:
text: Hookah" gear, tested to 48 fathoms (87 metres) in 1922, was considered unsuitable for the strong tides in these waters, and the later Scuba equipment did not supply enough oxygen to spend the time required underwater and resurfacing