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 19 · column 1 of 3 · from the scan, no model involved
ALL-PURPOSE
4 x8' WAFERBOARD
TUFF-R •7/16" x 4'x 8'
SHEATHING interior and 1/2” (R-3.6)
*5.99 ’High R-values mean greater insulating KtftMUliUttiMUIttiaftittlih exterior use
*6.75
PLYWOOD EXTERIOR GLUE •1/2" x 4' x 8' 3 PLY
*7.29 AGENCY GRADE STAMP
71.5%