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Stanley actually made there own axes.quite possibly made by one of the big axe manufacturers ,Collins,Plumb or Kelly
i'd bet on Plumb
your axe appears to be in good shape, not used much or abused
like square_peg said a 36 inch hickory handle , it is a job hanging an axe
some like to sharpen the bits[ cutting edges] without the handle, some like to hang the axe first and then sharpen
i've done it both ways, having the handle attached lets you clamp the handle down while filing the cutting edges
luck
buzz