Jakobson 1770

source: Peter the Great Museum of Anthropology and Ethnography, St.Petersburg, Coll. No ML-00469

photo: W.Szrek

photo: W.Szrek

photo: W.Szrek

photo: W.Szrek

source: Apokin, Majstrov – Development of Calculating Machines (1974)

source: Apokin, Majstrov – Development of Calculating Machines (1974)

last updated: 09-Dez-11