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 2 · column 1 of 5 · from the scan, no model involved

Roofing and Builders’ Supplies TIN—Galvanized Roll and Sheets Asphalt Shingles and Rubber Roofing
Building Material Windows — Doors — Steel Sash — Cement Wall Plaster — Rock and Steel Laths Wall Board — Insulation — Locks Hinges, Etc. Double and Single Loop Bale Ties Woven and Barb Wire — Steel Posts — Nails SHERWIN-WILLIAMS PAINTS — Best Made PHONE 2631
56.5%