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Description
Newspaper advertisement for H. G. Knapp & Son's Tractor Disc Plow. Unknown publication. "Cutting 100 inches wide, with 14-inches deep. Two Knapp tractor plows behind a 75-H. P. engine, ten disc, cutting 100 inches. The Knapp Tractor Disc Plow, built solid and strong, handles easy and quickly adjusted; light draft. Stays in the ground. Guaranteed not to swing around when you strike hard ground."
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