miter sled for tablesaw.  Includes adjustable stops that can be fixed
to set locations by means of a setscrew.  Slide bar is slit at 3 places,
and has setscrews to expand it for a snug fit in the table slot. 
RD Eaglesfield tablesaw from 19-teens.  Fence on miter sled has T slots
on both sides for stops, and on top for various hold downs.