Thanks for your help, Jon. I'm loving the bag. I just wish it had a hand strap, Thinking about dyeing it and then reweather sealing it.
And on your bag - was visiting my sister, whose brown F2 dates to when I gave her my FTb, so late '86 or early '87. It has "The Rugged Professional" on the stripe under the "DOMKE". It also has a snap in the middle of the back pocket, as does my classic F2 from the early '80s (metal fittings all around) and its companion F801. They don't have anything embossed in them however. All that says your bag probably dates between late '87 and mid '88. I just dug out my navy F2 which I probably got in early '88 (that'd be this one) and it does indeed have the snap on the back pocket, with DOMKE on it.