to whom it may concern, lot 714 is not a "standard ditching machine" wrench. Thru my research i found this wrench in caterpillar parts book for the mogul grader they produced immediately after purchasing the russell road machinery co 1928. I believe it could either be a russell wrench or a caterpillar wrench depending on how its marked. If the other side of the wrench reads "super mogul"
"super special" i consider it a russell wrench. If the other side is blank or marked m350 i consider it a caterpillar wrench. pm me for more information if you like.
edit,I now see lot 349 too, i consider it a russell grader axle nut wrench for their super mogul and super special graders.