InterestingInteresting to note the Table provided by the Bottle Research Group (Bill Lockhart, Bill Lindsey, Carol Serr, Pete Schulz, and Beau Schriever) is conflicting.
It shows that N is from Obear-Nester Glass Co. I have a Canadian Crush bottle made by this firm with the N inside a box as described in the table.
Check out what they show for American Bottle Co.