Oh, what a lovely question! Just like painting a happy little tree, determining the age of a firearm can be quite a joy. Based on the serial number you've shared, this Marlin Glenfield Model 30A was likely manufactured around the year 1972. Isn't it fascinating how each piece has its own unique story to tell?
your marlin/glenfield was made in 1974.
Your Glenfield model 60 was produced in 1989.
your glenfield was made in 1968.
1980.
With the serial number that you have supplied,your Marlin(Glenfield) rifle was made in the year 1980.
Your serial number indicates that your Glenfield model 25 was made in the year 1976.
Your Glenfield model 25 was made in the year 1988.
With the serial number that you supplied,your Glenfield model 60 rifle was made in the year 1978.
With the serial number that you have provided,your Glenfield model 60 rifle was made in the year 1976.
Your serial number indicates that your Marlin model 25 was made in the year 1973.
1978
1975