From the plaques it seems this speedster may be known by some.
It may be old and well known,but it is not a 1912.
I have seen the car several times and have pictures if it but I can not remember who it belonged to.
Appears to have been built in the 1980's from various parts. I don't see any parts older than about 1924. It looks to be a nice piece of workmanship. Probably worth near the asking price.