Blue Book of Gun Values is one place to start
Hawthorne was sold through Montgomery Wards. The 820b is actually a Mossberg 320b sold under the Hawthorne trade name. Book value is $20 to $100 US, but they are great little rifles.
50-100 or so
I wouldn't pay more than 125 dollars
value will depend on overall condition................
32/22 cal rim fire short rifle history and value
A 1915 Erfurt 8mm rifle is worth between $200 and $2,000 depending on its condition. The actual value varies based on individual sellers and the history of the rifle.
Not sure how long ago this question was posted, but the Hawthorne Sentry rifles were actually made by Colt Firearms Co for Sears and is the same as the Colt "Colteer" 1-22. Cold marketed both a single shot rifle and semi auto rifle that were named Colteer. There is some discussion as to whether COLT firearms actually manufactured these rifles themselves or had the manufacture vended out to a company named Kodiak. In any event, it is a clone of the Colt Colteer. A good rifle for it's intended market, a basic single shot "Boy's" rifle, and made in the late 1950's.
what is the value of a Winchester rifle 85?
" value of the colteer 4-22 rifle ? "
100-multiple thousands depending on EXACTLY what it is, history, etc.. Seek a professional's help
100-1000 USD. You will have to conatct FN to find out about the history.