I'm working on an older Platinum 3776 for a friend, the model issued starting in 1979, and am curious about the nib inscription. Does anyone know or can read the symbol to the right of the "14K" inscription, and the symbol below that, on the bottom?   Also, does anyone know the production dates of this model? Please forgive the crappy cell phone photos. I'm at work, avoiding everything on my desk except the pen.   Many thanks,   Tim