I just bought a bear grizzly from a guy at work. It took over two years to finally get this bow. It is in perfect condition,just like the day it was made. -WOW- Now that I have it I need all your help in determing the age. The serial number is 6p7785 its 58" and 42# Any help would be great. The guy I got it from thinks it is a 1965 or 1966 it has the gold bear on it. The original string is just like new. Also any idea what the brace hieght should be? And where to measure it from,and what string should I put on it. Thanks