Fathometer Dial Glass (1114)
Index: 1114
Year: ?
Maker: Submarine Signal Corporation, Boston, USA
Dimensions: 27 x 1 x 27 cm
Info
Submarine Signal Company is currently Raytheon Technologies
Inscriptions:
FATHOMETER
REG. U.S.PAT.OFF
SUBMARINE SIGNAL CO.
BOSTON U.S.A.
Depth in Fathoms
References/Links/More Info
Wikipedia, Herbert Grove Dorsey, inventor of the fathometer
Ocean Exploration and Research
Philippines Maritime News Pinoy Seaman Ph
