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 29 · column 3 of 8 · from the scan, no model involved

ISP DRAIN
PIPE
•4"x 10' •Rigid P.V.C. •Solid or perforated •1500 lb.crush
*3.19 J
82.1%