1092 burke x 723 bobier-- 865 mettler x 1092 burke,1092 x 845 bobier,1092 burke x 801.5-- i do not have the real 723,but i have many 723 self,i will give back many good cross for a 723 bobier,are i have a rear tine tiller are a front tine tiller for trade,1974 4x4 chevy truck for trade for a few 723,845,865,935.