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 6 · column 4 of 6 · from the scan, no model involved
<9 Doors m Windows • ■ \ $1 Cinder Block # Sand - G/avel # Builders’ Hardware % Terra Cotta Pipe
Rock Wool Insulatior (9 Roofing Materials % Masonry Supplies
Rubber Tile <9 Asphalt Tile ® Screens — Wood am # Aluminum <9 FlodHngs
65.4%