Bob: I agree with you: "no two the same".
My 1930 614 from Oakland has the 614 and vin stamped in on the plate. However, my 1931 612 from Lansing has the 612 lettered (printed) rather than stamped. The vin number is stamped, but it has a Roman style to the lettering which, depending on the angle and light when viewed, could appear to be raised lettering rather than stamped in lettering (an optical illusion). It looks like the second plate in your last email (second photo).

Where Are You From? Ellensburg, WA

Do You own a car built by Durant? Yes

Yep "no two the same" Mine has a - between 6 and 14 plus the J is also stamped .. The 1930 eBay one is all one 614, Bob's painted one no separation either. Goes with the "no two cars the same" ha ha

Where Are You From? Ottawa Ont

Do You own a car built by Durant? 1932 Dominion built 614 Sedan