Vintage Hand Crank Centrifuge Cast Iron D830 Medical Lab Or Dairy

Vintage manual hand-crank centrifuge • Heavy cast iron construction with wooden handle • Marked "D830" on base • Holds two bottles or tubes securely • Spins smoothly when cranked • Believed to be used for general-purpose lab centrifuge or dairy milk testing • Great for collectors of scientific, agricultural, or industrial equipment • Shows age-related wear and patina