Comparison Camber, Haemaglobinometer; Germany
1890-1930
Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930
Hellige haemoglobinometer, plated steel and glass, made in Germany, 1890-1930
1890-1930
1890-1930
1890-1930
1890-1930
1890-1930
1890-1930
1890-1930
1890-1930