Glass pleximeter, English(?), 1801-1930
1801-1930
Sansom's pleximeter
1861-1904
Ivory pleximeter with scale, English(?), 1801-1920
1801-1920
Pleximeter, ivory and plated steel
1801-1900
Pleximeter by Charriere of Paris
1820-1865
Ivory pleximeter belonging to Prof. Matthew Hay of Aberdeen
1881-1930
Traube's plessimeter with scale
Ivory plessimeter with scale
Sansom's pleximeter
1861-1904
Ivory pleximeter with scale, English(?), 1801-1920
1801-1920
Traube's pleximeter with scale
Ivory pleximeter, English(?), 1801-1920
1801-1920
Piston action combined percussor and pleximeter
1861-1920
Ivory pleximeter with scale, English(?), 1801-1920
1801-1920