[napa68]

Dave,

The stamping is really light. I would say the last letter is "T". The first, I cannot make it out. A "WT" master would have come on the car. Are the original stampings usually that light?

The way the bore of the master was corroded and the patina of the exterior, a person may be willing to speculate it is original. I'm surprised the M/C kit worked

Thanks,

Tim