Tight close-up, top-down view of a **ribbed metal stair tread** (cast **iron** or steel) on the **stair flight to the second floor** at the Hoffmann-Hayman factory, photographed **24 October 2014** (source **iPhone 5**) — the tread face shows fine speckled texture in the upper field and **horizontal raised safety ribs** below; embossed in raised **sans-serif capitals** along one rib line: **'AMERICAN MASON SAFETY TREAD CO.'** and, on the same run, visible letters **'LO'** before the crop (the full foundry line often carried a **city** such as **St. Louis** on period castings — not fully legible in this frame); the metal carries a brown-grey patina with rust speckling in the grooves and **letter counters** — same **industrial stair** family already visible in wide shot in [the stair-down frame](/assets/images/gallery/factory-upstairs-stair-down.jpg) (ribbed treads and pipe handrail at the floor opening)
Tight close-up, top-down view of a **ribbed metal stair tread** (cast **iron** or steel) on the **stair flight to the second floor** at the Hoffmann-Hayman factory, photographed **24 October 2014** (source **iPhone 5**) — the tread face shows fine speckled texture in the upper field and **horizontal raised safety ribs** below; embossed in raised **sans-serif capitals** along one rib line: **'AMERICAN MASON SAFETY TREAD CO.'** and, on the same run, visible letters **'LO'** before the crop (the full foundry line often carried a **city** such as **St. Louis** on period castings — not fully legible in this frame); the metal carries a brown-grey patina with rust speckling in the grooves and **letter counters** — same **industrial stair** family already visible in wide shot in [the stair-down frame](/assets/images/gallery/factory-upstairs-stair-down.jpg) (ribbed treads and pipe handrail at the floor opening)
Catalog ID
HH-FACT-2014-0012
Gallery
Factory