Apothecary's balance 18th or early 19th century Apothecary's balance 18th or early 19th century 1701-1850
Apothecary's equal-arm balance, with boxfoot base drawer and pillar, and beam and scale pans, unsigned, United Kingdom, 1775-1825 Apothecary's equal-arm balance, boxfoot base drawer,pillar,beam and scale pans 1751-1870
Barber surgeons's signboard with suspended barber's basin, French, 18th-19th century Barber surgeons's signboard with suspended barber's basin 1750-1900
Apparatus to show apparent weight increase in charged cork ball Apparatus to show apparent weight increase in charged cork ball 1850-1900