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 18 · column 1 of 4 · from the scan, no model involved
ROOF* FOUNDATION
COATINGS is! SMI. Asphalt Roof Gasbag ■3L79 »13l39 Asphalt (rubberized) 13.85 *13.85 Plastic Roof Csment ^3L79 *1039 Atumnwm Mat *7.65 *31.25
51.0%