A 10" Conical Mirror for Dave . . .

Dave, in Winston-Salem, North Carolina sent along his 10" Royce Conical.
Here you see it mounted on the mirror board and mirror cell.

Note the mirror cell is NOT larger than the mirror!! Just an optical illusion..

The conical mirror mount with a single 1/2" nylon bolt, spring and nut.
For the 10" size, and smaller, the bolt does not protrude through the mirror surface.