Thanks, but I don't think that works here...that would make it built in 1913 :) Those who have looked at it say construction methods indicate 70's to them but as the original electronics are long gone there's not way to really pin it down.

Nice! If you want to figure out the year, take a look at the serial number on the back of the headstock. Put the 1st and 5th numbers together to give you the last two digits of the year. 19xx