Hey Terry,
Gonna guess that that is basically the American Marc Baroda runabout hull without the windshield and enclosed bow.
Since you brought it up, here's the Boat house bulletin on you rare one the Moesly SeaCraft 21
http://www.fiberglassics.com/library...BHBPHOTO58.JPG
Great website by the way for those of you unfamiliar with it. Very cool stuff there.
