E.g. type Brescia up to type 101, type 13, 14, 16, 30, 35, 36, 37, 40, 44, 49, 51, 53, 55, 57, 59, 64, 101 Royal research work, a total of 6 Leitz folders from 1901 - 1950, newspaper cuttings, printouts from the internet, photos taken at exhibitions etc., over 3000 pages