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 20 · column 1 of 6 · from the scan, no model involved
©djejg* Xliff-R
SHEATHING 1/2" x 4' x 8'(*R-3.6)
*5.79 3/4" x 4' x 8'(*R-5.4)
*6.89 1"x4'x8'(*R-7.2)
*9.89
‘Higher R-values mean greater insulating power. Ask us tor the (act sheet on R-values
69.2%