Looking for info, Hawthorne M807

[RTFM]

Just found a Hawthorne Model 807 Single shot .22L.R. Bolt action.
The above is stamped on the barrel.
Also on the barrel is (get this)
Montgomery Ward & Co. EJN 807
All I can tell you is that it was my sisters from the 50’s

Thing that intrigues me the most is a two digit number stamped on the barrel, could this be a two digit S/N??

Anybody have any info on the company or the rifle?
It’s in almost N.I.B. condition.

Thanks, RTFM