Your rifles serial number is A999xxx and was made early 1972.
This serial range is called the "A Series Serial" and began late 1968. It differs from the earlier serials in that what ever firearm came down the line got the next number. There is just one big serial range. Makes it easier to date a rifle but we have no idea as to how many of a model were produced in a given year.
Thank you so much for your help Rick. My next step is to try and find a set of mounts for a Balfor A scope. Hopefully they made them that work with the tang safety. Thanks again for your help!
