Some sort of gauge?

[Grimaldehyde]

Hope I do this right-I found this out in my yard, near an old barn foundation where stuff just keeps surfacing. It’s pretty corroded and I can’t see what is beneath the glass, so there is no clue what it’s function might be. It’s heavy for its size-around 2 1/2 lbs. Any ideas?

 

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[Rum Tide]

Stock internet photo labeled: Old Truck

 

[toddbbq]

Looks like a speedometer gauge to me as the part on the back is where the cable would run from the transmission to the gauge.

 

[Toecutter]

Looks to be a speedometer of some sort....

 

[Grimaldehyde]

You know, we did wonder if it came off a truck..in the not to far off vicinity of this item, and the foundation, I found an old iron bumper jack. We thought maybe they used to park vehicles back there

 

[mk76]

If you play a bit with the rust that comes inside the tube and will find some square/triangular wire coming in that's most probably speedometer.

 

[Charlie P. (NY)]

Tractors had/have gauges and tachometers as well.

 

[A2coins]

Good I'd beat me to it I'll let it slide this time lol

 

[Reanm8er]

Folks, I'm as mystified as everyone else but the end sticking out sure looks like a spark plug. This might have been part of a spark plug testor!

 

[Back-of-the-boat]

speedometer

 

[ToddsPoint]

Bicycle speedo. Gary

 

[mk76]

The size of the tube suggest either some thick gauge wire or pressure so can't be bike, or bicycle speedo, the entering wire would be way thinner.

 

[Grimaldehyde]

Folks, I'm as mystified as everyone else but the end sticking out sure looks like a spark plug. This might have been part of a spark plug testor!

The part that you see sticking out is threaded-I don’t know much about mechanical things, but it doesn’t appear to be a spark plug.

 

[Grimaldehyde]

Bicycle speedo. Gary

View attachment 1708327

It weighs about 2 and a half lbs-I think it’s too heavy for that