$300

Hand Spectroscope

$100

Antique Telegraph Key Morse Code Signal Electric Mfg. Co Menominee, Mich

$39.84

Solid Brass Antique British Military Prismatic Pocket Compass Marine Solid Gift

$35

Tree of Heaven Ailanthus glandulosus Microscope Slide [1892]

$35

Stellate Hairs from Elaeagnus sp. Microscope Slide for Polariscope by E. Wheeler

$40.74

Barometer Original Short and Mason London Solid Wood Glass Made in England

$32.06

(108#) GALVANO METER, 1950's CATALOGUE FOR SPEC {PHYSICS}

$35

Collection of 5 Cycas circinalis (Cycad Anatomy) Microscope Slides

$14.05

Double-round-head Dragon Rod – Copper Ruler, Double Beads Water-probing

$88.29

Antique Sikes' Hydrometer and Sikes' Tables book

$45

Human Uterine Apoplexy Pathology Microscope Slide by Moeller

$49.99

Direct Current Voltmeter Steampunk Sensitive Research Instrument lot of 2