Mystery Brass Measuring Tool

This tool at Smith’s Tavern is a mystery.  It is made entirely of brass, which side is up or down is uncertain as both ends having different type of hanging hooks.  It is composed of a tube connected to a round cylinder that has a sliding round port cover. Could it be a type of scale?

 

If anyone knows anything about this particular tool, please email the Historical Society with this much-needed information.

 

Reference:  None

Catalog Items:

Item NO ID

Location:	Right Shelf - 3rd
Length:	35 cm
Width:	11 cm
Height:	12 cm
Weight:	1056 g