No. 22 plates numbered from N°. 1, drawn by hand on tissue paper applied to rigid cardboard. In the tables there are drawings and technical cross-sections of the very first torpedoes, torpedoes, boats for their transport, underwater launch trolleys, mechanisms for igniting explosives with calculations of their power, etc. On the back of the first plate there is a sheet affixed with the words of the Command of the "1st MAS Flotilla", which subsequently became "Xª", signed by Commander Paolo Aloisi, who declares that the drawings come from the SVAN Naval Shipyard in Venice (shipyard where the very first MAS boats were developed) and as such covered by military secrecy and therefore disclosure prohibited.
These tables are an exceptional historical testimony: they should date back to the end of the 19th century (1880-1890) and were so accurate, important and of such high technical value that they were studied by the I Flottiglia Mas.
Each individual board measures 31cm x 21cm.
A digital copy of each plate was provided to a direct relative of Commander Aloisi for the family archive.
Documents relating to the history of the Royal Italian Navy, in excellent condition.