Ruger has extensive serial number information on their web site.
Check the receiver and barrel
Ruger's website has a serial number look up function you can use.
A Ruger 10/22 with that serial number was made in late 1970. This information is available at Ruger's website, www.ruger.com.
10-200 USD or so
100-1000 USD depending on specifics
50-200 USD or so
Value is based on EXACT model and condition. Anywhere from ABOUT $125- $190.
it is worth ..............$$$$
Yes, Ruger made them
50-200
What exactly are you asking?
Ruger.