Brian,

Based on a couple of quick measurements, the #1 knob seems to be about 1
1/8 inches at its largest diameter, 7/8 inches at the base, and 1 5/16
inches tall.  Fairly close to what you used.  I looked for the spare #1
knob I had, to see what it would look like as a substitute for the brass
knob, but couldn't find it.  (I think SWMBO may be right in her
description of my shop as total chaos, or some such words.) :-)  Of
course, if someone didn't want to turn a knob (or didn't have a tredle
lathe to use), they could always use a knob off a Stanley #98 or #99
side rabbet - it is the same size as the #1. 

Frank (Fort Worth Armadillo Works)

"BUCKNER, BRIAN" wrote:
> 
> Frank,
> 
> I don't know about the #1 knob. I don't own one so I can't compare.
> 
> This knob measures 1 1/4" at the largest diameter. The bead at the base is
> 3/4" diameter and about 3/32" high. The knob is 1 1/8" tall overall.
>