Alan, I talked to R.C. Hawie and (Racing Historian officer) for the antique outboard moter club. He also said he did not believe this to be Mr. Christy's boat. The M-143 is a Mich. designated #. but he did not know nor is there any record's thru APBA that would say. Good luck Alan. Look at it this way You will have a nice boat when you are finished.