Long shot, but here it is. I have two shafts that came with a schon a few years ago. The shafts are:
Brown phenolic with brass pilot, phenolic collar over pilot.
The collar is .425 with a .040 nickel silver, I believe, ring.
.831 at the joint collar, with the pilot extending .200 past the collar.
OD of pilot is .533
28 7/16's length with 3/4 ivory ferrules. My gut tells me they where 28 1/2" and 1" originally. I know I had the ferrules replaced as they where cracked when I got them.
Brown phenolic with brass pilot, phenolic collar over pilot.
The collar is .425 with a .040 nickel silver, I believe, ring.
.831 at the joint collar, with the pilot extending .200 past the collar.
OD of pilot is .533
28 7/16's length with 3/4 ivory ferrules. My gut tells me they where 28 1/2" and 1" originally. I know I had the ferrules replaced as they where cracked when I got them.