Huh, I thought all 312's were Braz based on the dates of manufacture. But on rare occasion, my assumptions have been proved wrong.
Well thanks! I tried to confirm via s/n lists to see if they were still being made by the time they were using EIR but the '70-'79 list only shows numbers not models.Looks like a great guitar! Looking forward to the day I can get mine back togther. Getting closer every day.
"...but I can't recall an F-312 that was ever confirmed as anything but Braz,"
There are quite a few EIR 312s around, and a few "hybrids" (Indian and Brazilian) as well.