Dude its just a path frame, its probably built just after Holdsworth took over FG Grubb, if its freddie grubb at all. If it is FG Grubb 1972+ its most likely just a 531 plain gague "Path" frame. Sililar one went on ebay for like £90 inc postage, didnt look like a proper track frame but wasnt drilled for rear brake and no forks.
Dude its just a path frame, its probably built just after Holdsworth took over FG Grubb, if its freddie grubb at all. If it is FG Grubb 1972+ its most likely just a 531 plain gague "Path" frame. Sililar one went on ebay for like £90 inc postage, didnt look like a proper track frame but wasnt drilled for rear brake and no forks.