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 · spans the page · from the scan, no model involved

“TRIGON? THAT WAS, OF COURSE THE ORIGINAL NAME FOR THE PLANET VENUS. NOT A WHOLE LOT OF PEOPLE KNOW that:'
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