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Copperplate and other modern printing bases can be made photographically (have made huge printing plates myself).
Are sheet-feed printing presses print newspapers in large format, are continuous-feed presses from roll can cut any length. Consider also how modern cloth printed bolt length, can be near 2 meters wide.
Am influenced in opinion by different colors in first and third group photos. Charcoal not fade to brown. Is ink difference, poor printing.
Good luck,
Cal
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