In Reply to: Dearborn Plow History posted by Jeff Boyer on July 01, 2013 at 17:29:58:
It's what is known as the "Economy" plow because the "Prior Model" plow that it replaced did not have replaceable shares. It was introduced during the 8N model period - I think in 1951. Here's a page from a 1951 dealer ad brochure that describes the "new" Economy plow bottoms:
Here's a scan of an original invoice that came with my '52 8N that shows that the customer purchased a 10-156 Economy plow as part of the package:
Our Manuals / Plows library has much more info on this model plow.
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