I am also considering this one as a possible rehab project if it's cheap enough. Not sure if it's real and concerned about the seller saying its a "cashin era" bag. Wouldn't cashin era bags say "made in New York"?
http://******/1hUkvGO
Probably not, since real Cashin-era bags probably wouldn't have creed stamps of any kind. The stamps and then stamps and serial numbers didn't come into the picture until after 1974 which is when Cashin left Coach. A Cashin-era bag would never have a serial number.
The "Made in USA" stamp puts this in the Lightweight line from the later 1980s, probably a Shoulder Pouch, style 4025.
Most sellers who use it throw Cashin's name around as if it was a Frisbee at a beach party. And most of the time the bag and the style has no connection to Cashin at all, like with this bag which wasn't even made until at least 15 years after Cashin left the company.
ETA - Whoops! Sorry, I didn't see Whateve's answer.