Identifying and Valuing a Vintage Stevens Single-Shot Rifle

Question
My father in law has an old J stevephs single shot 22 rifle. I did not see model number. the serial number is 175. It is has a pin that releases the barrel and it is cocked by using the lever that covers the trigger.
Where can i find the model number and how old and how much is it worth?
Thanks rick

Answer
It sounds like a Stevens Favorite.

There should be a model number on it.
I'm going send you to this site.
http://www.geocities.com/c-thunderer/STEVENSRIFLES.html

Maybe he can help you ID it.
If it is Favorite did not have a serial numbers.
There was model 175 Peep sight.
There should be a model number

http://www.wisnersinc.com/exploded_views/Stevens_Favorite_parts.htm

I can give you age & value once I know it is.
Sorry I can't be of more help