Old Farm Tools – What Is It? January 2011 Mystery Tools Answers

Answers to the January 2011 mystery tools

January Mystery Tool B
January Mystery Tool B. Device for grinding mower knives. Identified by Robert Scholz, Elmo, Mo.; William Reedy, Brandon, Iowa; Marshall Futhey, Rose Hill, Kan.; Alan Duffield, Browns Valley, Minn.; Harvey Dale, Lewiston, Idaho; and Fred W. Courser III. See patent 359,964. 
Photo submitted by Vernon Betz, Golden, Colo.