Harris
				Harris Typewriter Co., Fond du Lac
				Since 1914: Rex Typwriter Co., Fond du Lac
				Since 1921. Demountable Typewriter
Models and s/n	Y	M	D	Remarks	Ref.
Standard manual
Harris visible
	1911			3 key-row machine, 28 keys	4
Rex, Rex Visible, Rex Demountable Models
	starting 1914			some Models sold by Sears	4
up to Model 10
	1921			32 keys, some Machines already sold as "Demountable"	4
Demountable Model 1
	1921			Started in 1921, 4 key-row	13
Demountable Model 2
up to 140000	1929			Started in 1925, since 1926 different carriage sizes	7,13
150000	1931				13
155000	1932				13
156000	1934				13
Portables
National No. 2
	1917			The"National" was developed and built in the Harris factory, 3 key-rows, 28 keys, National No. 1 was never sold	4
				Model 2 was exported from Switzerland with the brandname "Express, later on sold in the U.S. as Portex and Crown, Nickel-models were available as well
National No. 3
	1919				4
National No. 5
	1920			First 3 key-row portable with a shift key at each side, steel frame	4