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 3 · column 6 of 10 · from the scan, no model involved

Plywood
4’ X 8’ Sheets Sanded and
Sheafing Grade Varies from 1/4” to 5/8” Thick
68.0%