Close-up of an informal pencil sketch drawn in graphite directly on a troweled white-stucco interior wall on the first floor of the Hoffmann-Hayman factory, photographed on 11 March 2022 — at the foot of the stairs up to the second floor, right at the edge of a later-cut secondary doorway into a first-floor bathroom, where the wood jamb and a brass door hinge are visible at the right edge of the frame (with a section of twisted-fibre rope running through the gap at mid-height) and a thickened projecting stucco ledge crosses the top of the frame; the sketch itself is a schematic composition of an irregular pointed shape above a small rectangle with a horizontal line extending right (ending in a short vertical tick) and a vertical line descending below, reading loosely as a rough elevation-style diagram, and a torn-piece-shaped yellow-amber residue of aged masking-tape adhesive is soaked into the plaster at lower-left — a second human trace beside the pencil mark itself
