Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 20 · column 3 of 4 · from the scan, no model involved

POLYETHLENE FILM
99 10' «21’ H—vy duty 4 mil tfOofcn— to oovof your boots* obrubo* oto* int protoct from wbvtor'o woottvor* *o»#l29
41.9%