Some finds in Parque la sabana Costa Rica

[norbyx]

Ok today I went to MD, I went out to a park in central san jose called "La Sabana" this park has a very interesting history, here it is for the ones that are interested in it:

The park was officially inaugurated in 1977, though its origins go back two centuries. San Jos

 

[charlie dert]

Key is not antique. It fits a typical 5-pin cylinder but has apparently been ground or filed down to a small size perhaps to make it easier to find on a ring of many keys.

The other gizmo could be a 160 degree thermostat for something. I am certain on the key but guessing on the thermostat.

Charlie

 

[Ant]

I agree it looks like a thermostat and the key is modern, the weatherhead is a hydraulic fittings inspection tag or some hydraulic component, weatherhead is a manufacture of hydraulic fittings.

 

[norbyx]

Any idea on the age of that thermostat... ??? I have never seen one like that on a modern engine. Could it be from some antique car or maybe an old airplane?

 

[Ant]

The thermostat in this photo is common and the parts are similar to the one you found, thermostats haven