I picked up a King Razor Hone last week.... 7" BARBER HONE KING RAZOR MFG. CO. INDIANA PA Red and Blue with Box. It was all black when I purchased it... through it in an ultrasonic cleaner with Mr. Clean 50-50 water and it came out looking like new. No chips. not sure of the grit or usage it was employed ... the pic are before and after bath in ultrasonic. I posted to Face Box with some success, but thought it might get a little more exposure here. Thanx









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