Mystery Brass Wood Keyed Crank Handle - Farm Engine Stove Home

An antique or vintage mystery part - solid brass hand crank with spinning wood handle and hang chain - no maker marks. This was in a dealers estate of salvaged stove and architectural parts. I have no idea what product this item fits. 

Size 7.5" length... 5/8" diameter keyed hole... weight 13 oz.

Intact brass with aged patina/crud uncleaned... handle age shrinkage crack.