Urinometer, glass, in leather case
1901-1930
Glass urinometer for diabetes
1940-1960
Glass urinometer in cylindrical case
1850-1950
Urinometer, Squibb's, 60 deg.F. Readings from 1000 to 1060 in cardboard cylindrical case
1900-1980
Urinometer, glass, unsigned, British, c. 1930
1920-1940
Metal urinometer in cylindrical case
1830-1880
Urinometer for testing diabetes
1830-1920
Urinometer with test tube in cylindrical cardboard case
1830-1900
Urinometer, mercury and glass
1830-1900
Urinometer, mercury in glass
1830-1900
Urinometer in leatherette covered cylindrical case
1830-1920
Glass urinometer for diabetes, in case, German
Urinometer set
Glass urinometer
1860-1900
Urinometer
Urinometer, glass, with ivory scale
1901-1940
Urinometers for diabetes
1850-1896
Urinometer of vulcanite in tubular case
1890-1910
Glass hydrometer
1800-1900
Glass urinometer
Glass 'Dr Vogel's' urinometer
1870-1940
Metal urinometer in leather covered cylindrical case
1830-1900
Urinometer with measuring cylinder in leather covered cylindrical case
1830-1900
Urinometer with measuring cylinder
1830-1900
Urinometer with measuring cylinder, cased, England, 1830-1900
1830-1900
Urinometer with measuring cylinder in leather covered cylindrical case
1830-1900
Urinometer, mercury and glass
1830-1900
Urinometer, mercury in glass
1830-1920
Urinometer, glass and mercury
Urinometer, glass and mercury
1830-1920
Urinometer, metal, with graduated cylinder
Urinometer, mercury in glass
1850-1930
Urinometer for diabetes
1870-1910
Glass urinometer, for diagnosis of diabetes
Russell urine test case
Glass urinometer marked Poulton
1930-1980
Urinometer, glass and mercury
1830-1870
Urinometer, mercury in glass
1851-1920
Urinometer and measuring cylinder
1830-1920
Urine test apparatus consisting of spirit lamp
Urinometer, mercury in glass
1874-1900
Glass urinometer for diabetes, in case
Glass urinometer for diabetes, in case, English
Mercury in glass urinometer
1830-1920
Russell urine test case, with a urinometer, c.1900.
1895-1905