c. 1913-15 original and intact american antique industrial wall-mount chicago twine factory oak wood-cased time recorder "hahl" pneumatic secondary or "slave" clock

original c. 1930's patented american antique industrial adjustable eight three-legged "rite-hite" pressed and folded steel factory machinist stool with intact solid maple wood seat

very unusual early 20th century american antique industrial angled wrought iron four-legged factory machine base with distinctive riveted joint arch top stretchers

original c. 1920's american antique industrial heavy gauge riveted joint steel four-legged freestanding machine shop stool with inward-turned ball feet

original and completely intact late 19th or early 20th century antique american ornamental cast iron drugstore window display show globe swivel bracket with acorn finials

refinished american industrial "royal-chicago" four-legged stationary factory workshop angled steel stool with original pine wood seat

very unique repurposed american industrial heavy duty stationary sitting bench with a newly added walnut wood top and oversized steel pipe footrest

very robust all original and unrestored c. 1930's american antique industrial red painted welded joint four-legged steel table with screw base "feet"

completely refinished original c. 1950's vintage industrial pressed and folded steel "lyon" factory machine shop stool with adjustable backrest

original c. 1940's deeply embossed heavy gauge steel american industrial city of chicago "sharp left turn" cautionary street or traffic sign

mid-19th century original american medical nicely aged brass metal apothecary or drugstore countertop mortar with matching pestle

c. 1880's original antique american medical unornamented cast iron drugstore or pharmacy mortar with matching pestle

oversized single-sided c. 1940's american industrial die cut steel "confined space" danger or cautionary wall-mount factory sign

c. 1940's american industrial oversized die cut steel chicago furniture factory "sliding doors" danger or cautionary sign

low-lying c. 1930's refinished american industrial all-riveted joint heavy gauge angled steel four-legged stool with inward turned ball feet

heavy duty c. 1930's american made antique industrial reinforced angled steel four-legged factory stool with riveted joints

all-riveted joint three-legged american industrial depression era pressed and folded steel stool with slightly flared feet

late 1940's pressed and folded heavy gauge steel four-legged machine shop toledo stool with red paint finish

heavily modified low-lying c. 1920's american industrial factory machine shop riveted and welded joint red painted stool with extensive cross-bracing

c. 1950's american vintage industrial adjustable height bent tubular steel factory stool with oversized maple wood saddle seat

c. 1900's single american industrial beveled edge solid copper commercial building basement open switchboard "vaccum cleaner" plaque

group of three original early 20th century antique american industrial beveled edge copper metal open switchboard plaques

early 20th century single-sided solid copper "basement" open switchboard beveled edge switch identification plaque with lightly incised lettering