dhs806-in, I am looking at Wendell's '100 YEARS OF IH". I see a picture of the Model #1 and #2 which may be yours ? Built from 1919 to 1924 the picture show being horse drawn. Yours could have started out that way and converted to tractor hitch. Next model #4A built starting in 1932 says all steel construction. No picture of a Spreader from 1924 to 1932 except a 150 bushel P.T.O. Spreader. So was there a Model #3 ? If so no picture in this book.