Issue No.02 - April-June (2012 vol.34)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MAHC.2012.19
An almost unknown calculating machine, deemed lost, has recently been discovered. It was invented and built before 1858 by Count Niccola Guinigi-Magrini, a nobleman from Lucca, Italy. The machine has a unique design and single-dial input device and is one of the few ancient Italian calculators still in existence.
history of computing, mechanical calculators, dial adders, 19th century, Italy, Niccola Guinigi-Magrini
Silvio Hénin, Massimo Temporelli, "An Original Italian Dial Adder Rediscovered", IEEE Annals of the History of Computing, vol.34, no. 2, pp. 49-59, April-June 2012, doi:10.1109/MAHC.2012.19