Apothecary's balance 18th or early 19th century Apothecary's balance 18th or early 19th century 1701-1850
Apothecary's balance with iron beam and brass pans Apothecary's balance with iron beam and brass pans
Apparatus to show apparent weight increase in charged cork ball Apparatus to show apparent weight increase in charged cork ball 1850-1900
Barber surgeons's signboard with suspended barber's basin, French, 18th-19th century Barber surgeons's signboard with suspended barber's basin 1750-1900
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