nd early 20th centuries. USNM 230574; 1959.
This singletree is made of wood. The trace chains of the team of horses
could be attached to the hooks on the singletree. Gift of John
Offenbacker, Sidney, Ohio.

187. Doubletree, late 19th century to early 20th century. USNM 230574;
1959. A doubletree made of wood. The doubletree served as a lever on
which to mount two singletrees. This arrangement distributed equally the
pull of a load between two horses. Gift of John Offenbacker, Sidney,
Ohio.

188. Singletree, late 19th century. USNM 230574; 1959. The trace chains
of two horses are attached to this home-made, wooden singletree. The
tongue of a machine would be hooked to the center of the tree. Gift of
John Offenbacker, Sidney, Ohio.

189. Grain Fork, about 1870. USNM 230574; 1959. This three-tine iron
fork was used to move bundled grain. Gift of John Offenbacker, Sidney,
Ohio.

190. One-Row, Hand "Corn Jobber," late 19th century. USNM 230574; 1959.
Gift of John Offenbacker, Sidney, Ohio.

191. Double-Harpoon Hay Fork, about 1870. USNM 230574; 1959. S. E.
Harris patented this double-harpoon, iron hayfork in 1867. Gift of John
Offenbacker, Sidney, Ohio.

192. Ground Hog Thresher, about 1830. USNM 230579; 1959. This early
thresher did not separate the grain from the chaff. Grain fed into the
trough passed into a compartment with a rotating iron cylinder filled
with finger-like projections which broke the grain into its component
parts. A fanning basket then separated the grain from the chaff.
Purchased from George Rhoades, Greenville, Ohio.

193. Sweep Horse Power, late 19th century. USNM 230579; 1959. This type
of horse power operated by the horse pulling a shaft in a circular
motion that set iron gears into motion. The gears connected to a pulley
for operating grain threshers, flour mills, saws, and the like.
Purchased from George Rhoades, Greenville, Ohio.

194. Marker Sled, possibly late 19th century. USNM 230579; 1959. This
wooden sled marked rows for future planting. The sled could mark three
rows approximately 34 inches apart. Purchased from George Rhoades,
Greenville, Ohio.

195. Large Hand Rake, late 19th century. USNM 230579; 1959. Made
entirely of wood. Purchased from George Rhoades, Greenville, Ohio.

196. Jointed, Wooden Harrow, mid 19th century. USNM 230579; 1959. This
two-sectioned, rectangular wooden harrow has five wooden beams per
section, each section having 18 rounded teeth. Very primitive. Pu