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 11 · column 7 of 9 · from the scan, no model involved
6 x 15" R- value. 19
.23 Su Ft
11.25 48 9b Sq. Ft Roll 6 x 23 R value 19
.23 Sq Ft
17.25 s 75 or Ft Roll
62.6%