(http://<a%20href="http://s728.photobucket.com/user/specialedmichigan/media/P4210199_zps72bd4666.jpg.html"%20target="_blank"><img%20src="http://i728.photobucket.com/albums/ww286/specialedmichigan/P4210199_zps72bd4666.jpg"%20border="0"%20alt="07-14-24 %20McC-Deering%2015-30%20inst%20parts%20manual%20photo%20P4210199_zps72bd4666.jpg"/></a>)
I will have to go back and shoot the part Numbers with description on these wrenches
Craig
B & C Emporium
http://www.b-c-e.biz
here is some better pictures of the 15-30 McCormick-Deering tractor wrenches
Craig
Craig, These might help you.
http://s1202.photobucket.com/albums/bb373/johnsironsanctuary/McCormick%20Deering%20Tractor%20Tools/