Figure 1. First Grammar School (founded in 1833), central entrance Figure 2. First Grammar School: orthophoto and floor plan Figure 3. School janitor during the sundial installationFigure 4. A photo of the sundial immediately after it has been put into operation Figure 5. The clock the time may wrongly tell, I never if the sun shines well.
Figure 6. The table with geographic coordinates of places and explanations
