You don't have a Model 94. They were never produced in any .22 RF model. What you have is a Model 9422. My 24th edition of Blue Book of Gun Values, which is more than a few years old, indicates they were introduced in 1972, and may still be in production. I'm not sure due to my book not being current. A good place to get info on it would be at
www.rimfirecentral.com. The people on that site are courteous and helpful, and would be happy to help you out. Simply sign up, and join in..... I think they even have a site that deals just with that particular gun.