We design and coordinate the realization of sundials and astronomical instruments everywhere, expecially in Italy. For each realization we prepare drawings, executive and analytical calculations (to identify the meridian line, draw the hour lines, etc.), constructive and decorative details. We supervise construction, on-site assembly, orientation, calibration and assistance to testing. Our sundials and astronomical instruments are unique and original, because of their specific location and of their tailoring to the customer requests.