The easiest method is by the serial number... if it is less than 2,700,000 it is a pre-1964.
"pre-64" means "before 1964". Figure it out for yourself.
Quick and easy. The first post-64 Model 94 was serial 2700000.
by the barrel gauge and cereal number..
Check the list posted on the related question.
The last pre-64 Model 88 was serial number 148,858. A guns value depends greatly on condition...ballpark figures for the value of a Model 88 in 284 Win. in 95% condition would be about $900 for a post-64 rifle and about $2000 for the pre-64 as the 284 was only available in the pre-64 version for one year....The most noticable difference between the two would be the stock....The pre-64 stock had diamond cut checkering while the post -64 had the oak leaf impressed checkering.
By the serial no, go to a Winchester serial no chart which can be found on the web.
the model number and serial number will give you the information,then ask your question here and you should be able to determine if your Winchester is a pre-64.
Pre 64 model 70 rifles have a serial number less than 700,000. Value is determined on many factors. Condition, originality, caliber etc.
http://proofhouse.com/win/index.html
Try Proofhouse.com
Winchester stopped producing the Model 1894 rifles in 38-55 and 32-40 calibers in 1941. These models were discontinued due to declining popularity and production changes during World War II.
I would be able to tell you the answer to your question if you would supply me with a model number and a serial number to the gun in question.