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 5 of 5 · from the scan, no model involved
Black Celotex (BuUdnf Board) 20 or more •heete ffr~l P-'MjP1* 1801
JO ite ex (Imulatbif Board) 4 *wv 4*a - Vt" 6 or more sheetsSt>:'
48.7%