I also have a "vintage" FG-110 Red Label, identical to the OP's . I bought it new in Okinawa, in 1970, for $45 case included. It has a serial # 1093389. It has been a closet queen
for the past 40 years, has great sound and I am going to spend the $ to have the neck reset.
I have not researched the serial #, but it may give someone else an indication of when their git was produced.
Bwana