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Goins' guide to cutlery markings lists a J. Bingham's 1875-1900. Could be your razor manufacturer.

Sorry for not being clear; what I meant was that old wedges often have uneven spine width, making either many layers of tape necessary for honing, or lots of metal removal on a low grit hone to even...

The "Warranted" is probably dates from 1820 or earlier, from the stub tang and scale shape. Probably cannot make a shaver out of it without a destructive metal removal process during honing, but...