Antique 1914 Dixons Rotational Viscometer Viscosity Scientific Instrument

Antique Vintage - A.A.Z. - GALVANOMETER - Meter

Mohr-Westphal Specific Gravity Balance. Vintage Scientific Instrument In Box

Antique Geissler Tube - missing contacts? Made in Germany sticker

Vintage Bullseye Bench Condenser Microscope Accessory Scientific Optical #26070

Antique Vintage - English Spyglass Monocular Folding Pocket Telescope with Case

Antique Vintage - JULES RICHARD - VOLTMETRE - Brass France Volt Meter

Antique - FERDINAND GROSS - GERMANY - Static Electricity Machine Generator