1974. go to mrgearhead.com and click on the guild link, then at the top is a link called dating and it gives you all the serial numbers for all makes. : I have a Guild D-25 Mahogany acoustic that I bought sometime in the 1970s (when I was too young and irresponsible to record important information). The serial number is 111555. Is there a way to tell the exact date and place of manufacture from this serial number? Thanks for your help. : Mike