First visit this trip to Maine....got a switch panel I needed for 3ph rotary converter setup.  A nice yet unmarked 3" sine bar a few little vee blocks and some nice ground lathe bits.  Coil was 75 cents so I took a chance it might work on my Rivett brake...no dice.  A little research shows it is more than likely for an early mag starter.  All this stuff plus the Rockwell Carbide Tool Grinder project from previous post... \$29!