Thanks, again for the replies. I have applied over at LetsTalkGuild.com and am still waiting for an authorization. In the meantime, I'll see if I can get some photos and upload them. I thought I had some on my computer, but when I got ready to upload them this morning, I couldn't find them, so I'll take some more.
I do have a photo of the label with the serial number and model number. Maybe this will whet your appetite...
I suspected it was a first year model, and given the low volume of guitars being built at the time, and given that the F-20 was probably built in fewer numbers than some of the other models, I also suspect that this could be one of the first 100 or even one of the first 50 or so ever built of this model.