B-306 SCREW ARM PLOW. J & L Denison. Unhandled, solid boxwood throughout, threads and nuts near perfect, very slight wear to front of fence. The partnership of John and Lester Denison was in business only from 1832-40 and the mark is uncommon, particularly on plows. The mark is light, but is not listed in AWP (it's similar to the C mark but with "Saybrook" underneath it. From the collection of Don Rosebrook.Fine 100-200 NOTE: Absentee bidding ends 5:00pm EST on Friday, March 29, 2019. Live auction is at Camp Hill Radisson, 9:00am, March 30, 2019, Camp Hill, PA.