a collection of cast iron vintage lb weights on a lab table

iron wood furniture art sculpture lighting carving machine wheel table floor room metal weapon footwear flooring chair vehicle collection cast vintage weights antique patina weighing scales equilibrium balancing science lab laboratory equipment lesson testing facility biology teachers classroom chemistry physics instruments one two three four pound kitchen cooking solid heavy dark black wooden case glass display group standing balanced top circles rings loops industrial pharmacy chemist victorian edwardian paraphernalia kinchenalia work waits infront bench cabinet old microscope clamps foreground experiment