Check the "Related links" for Armscollector dot com posted below.
The Winchester rifle with the model of 94-3030 was produced from 1894-1980. You can find out the year for your specific model by visiting a gun dealer and taking the gun with you. They can date it in store.
You will have to do some library research to find out.
Go to proofhouse.com
Should be able to find this model in the Manufacture Date - Winchester section of www.oldguns.net. In fact, you can find it there. I just did. It's 1958.
If you provide the serial number in your question then I can give you the date of manufacture.
If you would post the serial number and model number,I can give you a date of manufacture.
To determine the date of manufacture for your Winchester Model 12, you'll need to check the serial number located on the bottom of the receiver. Winchester produced the Model 12 from 1912 to 1964, and the serial number can be cross-referenced with production records to find the specific year of manufacture. You can find resources online or consult a Winchester reference book for accurate dating based on the serial number.
By the serial number.If you would include this with your question,I could provide the year of Manufacture.
Go to:http://armscollectors.com/sn/windates.htm
1921
Blue Boook of Gun Values or proofhouse.com
With the serial number that you supplied,your Winchester model 1894 lever action rifle was produced by Winchester in the year 1972.