I have wanted to find a bracket to hold not only the speedometer head, but also an Eight-Day Clock.
I recently came across an old note with an address in Hopedale, MA. No name on it, but if memory serves, this was where a man lived who made these brackets. SP917 is also on the note.
Anyone know this man?
I bought a repro bracket like you are looking for at Hershey last year. I believe the fellow who had it said they are no longer being made. He had bought all the remaining stock from an estate. I didn't see any more of this size at his stall. He had some other sizes and different types still for sale. However there could be someone else still making these.