Birdsell clover huller (a special type of threshing machine, cf. <a rel="nofollow" class="external autonumber" href="http://www.centerforhistory.org/learn-history/business-history/birdsell-clover-huller-company">[1]</a>); South Bend, Indiana, 1918. Indiana State Museum, 650 West Washington Street, Indianapolis, Indiana, USA.
Daderot
<span class="int-own-work" lang="en">Own work</span> (I took this photograph.)