I just acquired a 1984 F 46. The label says "co-designed by G. Gruhn." It is a guitar that I first encountered about five years ago but passed on because, as much as I liked it, couldn't bring myself to ante up the price. Besides, I already had several other Guilds. For some reason, I couldn't get this one out of my mind and often thought about it since. I figured that it was long gone until I got a phone call a couple of weeks ago from the owner who still had it. He said that he really needed to sell off some of his guitars and remembered that I liked the Gruhn F 46 so he was giving me first crack at it. I didn't hesitate this time and the rest is history.