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1 Layer of tape.

My grinding would not change a flat side to a V shape. Imagine how much metal would have to be removed to do that. It would also reduce the width of the blade. There was no blade width loss in the...

The wedge grind is symmetrical. The microtomes I am familiar with are ground flat on one side. Tweedales has pictures of old Spencer advertisements. They list Steel, Files, edge tools, saws, table...

I could not find this maker in the SRP archives so here is one. Matthias Spencer was a file maker granted his trade mark in 1749. A crescent moon and the letter Z. He died in 1809 but generations of...