$1610

Vintage Dekalb Paragon Survey Transit with Case and Antique Tripod

$995

*EARLY* Induction Ammeter (ca. 1890s)

$230.76

Ruler Of Calculation Brand Hope Made IN Jap � N To � OS 60 Slide Ruler Japan

$177

Jewell Volt Meter Gauge Vintage 135 Steampunk Adjust 3 NOS w BOX

$59.54

Lancets Pocket Watch With Leather Case Works

$61.92

Russian Handupe Bakelite 10 X Loupe Magnifier Jeweler Diamond Original Package

$134.67

Carl Zeiss Winkel Bakelite folding Loupe Magnifier 3x 6x 9x Rare

$474.42

parks cramer company psychrometer

$35

Vintage Propper Sphygmomanometer Blood Pressure Kit

$227.35

Gossen 7.55-548 Current Meter - Vintage - 100 mA - Round

$1450

Huge Antique Frank Adam Electric Co. Double Knife Switch Electrical Panel Board

$208.74

2 x Antique Geissler Tubes