What kind of tool is this?

[Z7_Matt]

Staying at my deer lease in a house built in the 1800s. He has all kind of cool things here. I was hoping someone would know what it is.

[Anvilheadtexas]

That's a rut predictor made by the LS Starrrett Co. Of Athol. Mass.

[doppelganger]

http://toolboxblog.com/2011/03/01/a-1905-starrett-gauge-but-what-is-it/

[Tom]

that is a dial indicator....it must be used for a specific piece of equipment or with another tool......at least that is my .02

[GrapeApe]

Its an RPM meter. Starrett is a great company that makes machinist tools.

Technically, it's a gauge, not a meter.

[Buckrider]

The big piece of rubber is missing off the end of it that is placed on the end of a motor shaft and reads the RPM's that the motor is turning to ensure it is running at the correct speed...

[Z7_Matt]

Thanks for the replies everyone. It's a cool tool!