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. 4 hydrometers and 1 thermometer in a wooden box. The box is intended for hydrometers only and contains an additional space for another hydrometer. "I. Steger stamped in box Optisohe Anahart Kiel, Wall 13" "Araometer. 1006-1013 spec Gen.
1902
National Maritime Museum

. Box for hydrometers and thermometer Lid is embossed with 'F.B.'. The chamois insert has the maker's name, 'I . Steger. / Optische Anstalt / Kiel, Wall 13'.
1902
National Maritime Museum

. Glass hydrometer with scale at top running from 06 to 13; contains lead shot in the bulb, which is blue. There is a paper label inside with on the front 'Araometer 1006-1013 Spec. Grav. Temp.: 17½º C', and on the back: 'Dr.
1902
National Maritime Museum

. Glass hydrometer with scale at top running from 12 to 19; contains lead shot in the bulb, which is blue. There is a paper label inside with on the front 'Araometer 1012-1019 Spec. Grav. Temp.: 17½º C', and on the back: 'Dr.
1902
National Maritime Museum

. Glass hydrometer with scale at top running from 14 to 21; contains lead shot in the bulb. There is a paper label inside with 'Araometer 1014-1021 Spec. Grav. Temp.: 17½º C'.
1902
National Maritime Museum

. Glass hydrometer with scale at top running from 18 to 25; contains lead shot in the bulb, which is blue. There is a paper label inside with on the front 'Araometer 1018-1025 Spec. Grav. Temp.: 17½º C', and on the back: 'Dr.
1902
National Maritime Museum

. Thermometer, outer tube broken but mercury tube is intact. Celsius scale -7 to 40. The paper scale has the maker's name, 'I. Steger, Kiel'.
1902
National Maritime Museum