Senta
				Frister &Rossmann A.G. Berlin, Germany
				In 1921: The main distributor of the machine founded with other distributors the "Presto Bueromaschinenbau GmbH in Dresden, Germany and produced the "Presto"
Models and s/n	Y	M	D	Remarks	Ref.
Portable
"Senta"
	started 1914			Three key-rows, 30 keys, this model was delivered with the name "Presto" for one distributor	4,13
up to 40000	1927				13
Model 4
	1926			Four key-rows, 44 keys
				In Bulgaria the Senta was sold as "Balkan". The production of all Senta Models ended in 1930.