$10

Horse Chestnut Microscope Slide

$25

Abuta rufescens Pollen Microscope Slide

$20

Antique Patent 1908 WIRT DIM-A-LITE Lamp Dimmer Light Bulb Socket Philadelphia

$200

Antique Large Weston Electrical AC Amperes Gauge Model 260

$202.98

Antique Brass Eidograph/Pantograph – Adie London – 19th Century Drafting Tool

$309.88

Negretti & Zambra Barograph R/37991 Antique Cased Untested UK

$45

Collection of 4 Podostomaceae (Riverweed) Family Pollen Microscope Slides

$25.71

antique clock mechanism for measuring yarn yardage by Hatra Casella London

$2295

Early 17th - 18th Century Portable French Barometer. Baserga Brothers Besancon

$149.99

Antique Vintage Copper Candy Thermometer Watertown Thermometer Company NY 13.75”

$22

Antique Glass Hydrometer Cylinder

$25

Cuphea calophylla Pollen Microscope Slide