Finding/figuring out pin configuration on undocumented components
A bit older post and a late reply, but I believe this answer may be useful for somebody. Just found a link which can explain the pins for this VFD

http://www.picaxeforum.co.uk/entry.php?142-LCD-LED-OLED-assorted-displays-lucky-bags-at-Maplin-2-(N01CG)-Kemo-Electronic-S043