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 3 of 5 · from the scan, no model involved
Tuff r SHEATHING© & 1/2" x 4' x 8’ (*R -3 6) . *6.25 3/4" x 4' x 8' (*R - 5.4) .. *7.79 ‘Higher R values mean greater insulating power Ask us for the fact sheet on R-values
64.3%