Since we can't post pictures on forum yet, its a W5 with serial 402723 for a model M Star. Star crest on the plate is the 1926 - 27 style

Here, this will take you to the ad and the pictures.

https://www.enginads.com/classifieds/showproduct.php/product/142230/cat/42

Where Are You From? Ottawa Ontario

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