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 8 of 10 · from the scan, no model involved

Shell Trim .06 per ft, Base .08 per ft, Door Stop .03 per ft Closet Pole .08 per ft Sanitary Base .06 per ft
55.9%