Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material		DateScale LengthArea of Use
Disk
Diving Industry Calculator
3D Instruments IncUSA
Cardstock
est. 1980'sDia. = 17.9 cmDiving Industry

Notes: "Used to determine seawater pressures at various depths and to convert various pressure readings from alternate measurement systems (PSI, kPa, kg/cmsq, bar etc. "


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