H & B

Little is known about this company, or even what the "H" or the "B" stand for.  We are leaning toward Humason & Beckley but research continues.  DATAMP suggests 2 possibilities, Humason & Beckley of Connecticut and Hubbard & Blake of Maine.  Our research indicates the latter focused solely on edge tools while there is evidence of the former branching out beyond their signature product, pocket knives.

This company definitely produced Colton patent vises based on patent #320,224.  Many examples can be found with an H & B marking via a quick web search.