Figure 29. I \m 1 - by Bertoli \ in the collection ol 



Doctor Vittorio dal 1 agi 1 1 il Bergamo. I he dial indii ates 

 the days ol the week and of the month, the names of the 

 months and lunar phases. [*he clock strikes the hours 

 and quarters and repeats 1 s Luigi Pij>pa of 



from Bertolla's shop. Parts of clocks and works in 

 progress are on view on the benches as they were in 

 Bertoli. is time. 21 Also preserved in the museum arc 

 sketches found in Bertolla's manuscripts, some of 

 which arc reproduced on the following pages. 



The shop contains two completed clocks made l>\ 

 Bertoila. One is a weight-driven lantern clock 

 typical of the 18th century. Italian style with brass 

 dial, plates and posts, anchor escapement, and striking 



1 pi is it. — I 1 S ili 'Innocente Binda' .il Museo delta Scicnza 

 e della fecnica di Milano," pp. 18-21. 



work. The dial is engraved in the usual style of 

 Bertolla's baroque design, and the hands are of pierced 

 bronze. Another clock associated with Bertoila and 

 found in the shop, was made by his nephew. AJes- 

 sandro Bertoila, who worked in Venice alter his 

 apprenticeship with his uncle had been completed. 

 This clock is a regulator with a seconds' pendulum 

 and sweep hand on an enameled dial. The original 

 case has not survived. 



( )ne of the most interesting of Bertolla's clocks, and 

 probably the List one which he produced, was found 

 in his workshop. This timepiece indicates the hours, 

 minutes and quarters by means of a single hand or 



PAPER 35: THE BORGHESI ASTRONOMICAL CLOCK 



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65 



