Need help finding Atlas Western book

[Hekla]

Looking for help id'ing the book from which I got a piece of original art a while back. On the back Joe Sinnot's name is written as well as Atlas, but Google tells me Joe did a lot of westerns while at Atlas & I'd like to find the exact book, or at least the title. The story title or apparent main character Dan Flynn aren't turning up any results either. Any help is appreciated.

 

[N e r V]

Check this site (Doc V's).

https://www.atlastales.com/creator/35

 

Research it as an unpublished story or title change too so check job number against others listed.

[Hekla]

good resource - Thanks! I couldn't find anything helpful looking thru the site quickly, but will spend more time on it later.