One-tenth of finer subdivision, mercury in glass thermometer wanted.

I'm looking for a narrow range (about 18-26 degree C or equivalent in F) mercury in glass thermometer. However, the range may be wider than this, as the range is not as important as the subdivision. THE SUBDIVISION MUST BE NO GREATER THAN 1/10 DEGREE CELSIUS.  Of course, the thermometers must be accurate, but it is even more important that they match eachother to within 0.02 degrees Celsius.  In other words, when the thermometers are placed in the same, stirred bath of water, they must settle to within 0.02 degrees of the other thermometers in the same water bath. The thermometers must be partial immersion.  Will be used for calorimeter.