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 5 · column 9 of 12 · from the scan, no model involved

0 Millwork
| □ Plywood i 0 Ponding | 0 Moldings
0 Insulation
0 Siding | 0 Wall Board
0 Flooring
42.3%