15", 5 on 4 1/2" bolt pattern, 5" wide note the indentations like a "bottle cap" that around the bolt holes & 3 slots cut in for ? double click on pic to see, thanks a bunch <!-- / message --><!-- attachments -->
I have one just like it. Was told it came off a 62 Studibaker Hawk. Hey, macs67 if you need to make a pair I would sell it, or Little wing work a deal with both of us and you'd have a pair!