Within the last few years, the workshop room was acquired complete with contents from Bertolla's descendants, and installed in the Museo Nazionale della Scienza e della Tecnica in Milan as an exhibit of a typical 18th-century clockmaker's shop. The original workshop was dismantled in Mocenigo di Rumo and completely rebuilt in the museum, including the walls, ceiling and floor. The paneling and woodwork of the walls and ceiling, which have been preserved intact, are hand-cut fir, with columns, trim and moldings carved by hand. A small painting is featured in the center of the coffered ceiling. The original shop benches and chests of drawers are set around the reconstructed shop and Bertolla's tools and equipment laid out as they had been originally. Other clockmaker's tools and equipment in the museum's collection are also displayed. Approximately 40 percent of the tools are the original items from Bertolla's shop. Parts of clocks and works in progress are on view on the benches as they were in Bertolla's time.[21] Also preserved in the museum are sketches found in Bertolla's manuscripts, some of which are reproduced on the following pages. [Illustration: Figure 28.--DETAIL OF WALL of Bertolla's workshop, with regulatory clock made by his nephew, Alessandro Bertolla of Venice. Note wheel layouts, etc., scribed in the paneling. (_Courtesy of Museo Nazionale della Scienza e della Tecnica, Milan._)] [Illustration: Figure 29.--TABLE CLOCK BY BERTOLLA in the collection of Doctor Vittorio dal Lago of Bergamo. The dial indicates the days of the week and of the month, the names of the months and lunar phases. The clock strikes the hours and quarters and repeats. (_Courtesy of Sig. Luigi Pippa of Milan._)] The shop contains two completed clocks made by Bertolla. One is a weight-driven lantern clock typical of the 18th century, Italian style with brass dial, plates and posts, anchor escapement, and striking 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 Bertolla and found in the shop, was made by his nephew, Alessandro Bertolla, who worked in Venice after 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. [Illustration: Figure 30.--LAYOUT OF THE WHEELWORK of a clock made by Bertolla for His Excellency Paulo Dona, inscribed "Design No. 1." (_Courtesy of Museo Nazionale della Scienza e della Tecnica, Milan._)] [Illustration: Figure 31.--PENDULUM ARRANGEMENT SKETCH for an unidentified clock found in Bertolla's workshop. (_Courtesy of Museo Nazionale della Scienza e della Tecnica, Milan._)] [Illustration: Figure 32.--STRIKING CLOCK SKETCH found in Bertolla's manuscripts. (_Courtesy of Museo Nazionale della Scienza e della Tecnica, Milan._)]