How to identify temp setting on a CH-152-35 thermostat
Here is an example datasheet for similar thermostats. 

You will note that there is not only just a nominal temperature, but the thermostat may be open or close at temperatures beyond the switching region, there is a (usually large) hysteresis which may be above, below or above and below the nominal temperature, and a tolerance. Of course there are electrical and life ratings as well, and usually safety agency approval numbers. 



Chances are the second number is the temperature, and the bottom number is a date code, but that's just a (reasonable) guess.