Dental unit head set, on wooden stand with glass cover, by the Ritter Dental Manufacturing Co., USA, 1925-1940 Dental unit head set on wooden stand with glass
Percussor and ivory pleximeter with scale, English(?), 1841-1920 Percussor and ivory pleximeter with scale 1841-1920
Percussor, pleximeter and monaural stethoscope (cased), Italian, 1831-1920 Percussor, pleximeter and monaural stethoscope (cased)