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 15 · column 4 of 6 · from the scan, no model involved

greatest demand comes in the period between ages 13 and 18, when youngsters eat more, require more expensive clothes and want more money for recreation.
Based upon current
98.6%