Your bow is a 1959 if it has tan glass
or
a 1960 if it has cream colored glass.
This info can be found on ArcheryArchives.com
As you will see the Cougar was made for the majority of the 50's and 60's. Someyimes it was a962, 964, 702 etc. You have to see when it was called a 962 like yours. Then you see that in most of the years it was called a 962 it was not available in 64" but rather 54". The only 2 years it was called a 962 and was available in 64" was 59 and 60. SO now we are down to the glass color.