Archo
Models and s/n	Y	M	D	Remarks	Ref.
Models A, B and C
				Test-Models	13
Model D
up to 1000	1920-1921				7,9,10
Model E and 10
up to 1000	1921			Model "E" with exchangeable typeset starting 1921	7,9,10,13
3000	1922				7,9,10,13
5000	1923				7,9,10,13
6500	1924				7,9,10,13
7300	1925				7,9,10,13
10000	1928			Tabulator in front of the platen	7,9,10,13
20000	1930			Ball-bearing carriage, between 1930 and 1935 the simplified model "Archo-Spezial" was produced as well	4,9,10,13
30000	1931				9,10,13
32000	1932				9,10,13
33000	1933				9,10,13
34000	1934				9,10,13
35000	1935			Model 10 since 1935, 4 rows-keyboard	9,13
36000	1936				9,13
37000	1937				9,13
38000	1938				9,13
39000	1939				9,13
40000	1940				7,9,13
41000	1941				4,9,13
Model 15
	1941			Model 10 with improved type-lever for export	4,13
Modell 20
	1941			Improved Model 15, new type-lever technique again	4,13
				Production of Archo ended 1941	13