Each machine received a serial number. The overview is provided here:
| Linotype Machine | First Shipment | Serial Number | Notes |
| ----------------- | ----------------- | ----------------- | ----------------- |
| Model 1 | 1892 — August 1 | 579 | 1892 — August 1, and consecutively to No. 6524, 1902 — February |
| Model 2 | 1903 — February 1 | 1 | 1903 — February, and consecutively to No. 850 March 1906, after which they were not numbered in a class by themselves |
| Model 3 | 1902 — February 1 | 6525 | 1902 — February. The first lot ran from 6525 to 6530; second lot from 6611 to 6616; next lot from 6917 to 6941; and were made standard beginning with 6994 |
| Model K | 1913 — February 4 | 1 | Consecutively to No. 3321 -- The Serial Numbers of this model shipped the first of each year are: 1913 No. 1, 1914 No. 477, 1915 No. 1085, 1916 No. 1437, 1917 No. 1703, 1918 No. 1766, 1919 No. 1772, 1920 No. 1835, 1921 No. 1978, 1922 No. 2754, 1923 No. 2921, 1924 No. 3056, 1925 No. 3301, 1926 No. 3321 |
| Model L | 1917 — June 8 | 2005 | Consecutively to No. 3339 |
| Model 4 (high base) | 1906 — November 1 | 10501 | |
| Model 4 (low base) | 1909 — January 1 | 12567 | |
| Model 5 (high base) | 1906 — February 1 | 9851 * | |
| Model 5 (low base) | 1908 — December 1 | 12708 | |
| Model 5E | 1939 — October 10 | 53936 | |
| Model 5F | 1945 — September 7 | 56985 | |
| Model 5F (High Speed Features) | 1958 — September 30 | 68530 | |
| Model 6 (high base) | 1908 — June 1 | 11895 | |
| Model 6 (low base) | 1909 — January 1 | 12454 | |
| Model 7 (high base) | 1907 — October | 11606 | |
| Model 7 (low base) | 1909 — January 1 | 12563 | |
| Model 8 (low base) | 1911 — June 1 | 15311 | |
| Model 8A | 1922 — April 21 | 31117 | |
| Model 8 (new style base) | 1927 — November 1 | 43966 | |
| Model 8B | 1929 — December 28 | 46630 | |
| Model 8B--4 Mag. | 1935 — December 18 | 50179 | |
| Model 8BB | 1936 — May 6 | 50572 | |
| Model 8C | 1932 — March 15 | 48453 | |
| Model 8CC | 1936 — July 15 | 50789 | |
| Model 8D | 1936 — February 24 | 50370 | |
| Model 8E | 1939 — October 27 | 53894 | |
| Model 9 (low base) | 1911 — May 1 | 15001 | |
| Model 10 (low base) | 1911 —June | 15302 | |
| Model 11 (low base) | 1911 — August 1 | 15486 | |
| Model 12 | 1912 — December 1 | 16349 | |
| Model 14 | 1914 — July 1 | 18891 | |
| Model 14A | 1922 — April 28 | 30897 | |
| Model 14 (new style base) | 1927 — December 1 | 43750 | |
| Model 14SK | 1923 — May 24 | 33590 | |
| Model 14B1 | 1930 — January 28 | 46706 | |
| Model 14B3 | 1930 — January 27 | 46717 | |
| Model 14BB3 | 1936 — May 7 | 50566 | |
| Model 14C1 | 1932 — March 15 | 48454 | |
| Model 14C3 | 1932 — March 28 | 48462 | |
| Model 14CC3 | 1936 — July 1 | 50746 | |
| Model 14D3 | 1935 — January 25 | 49724 | |
| Model 14E3 | 1939 — November 10 | 53898 | |
| Model 15 | 1913 — October 6 | 17235 | |
| Model 16 | 1916 — August 13 | 20101 | |
| Model 17 | 1916 — September 17 | 20102 | |
| Model 18 | 1916 — June 5 | 20111 | |
| Model 19 | 1916 — June 13 | 20112 | |
| Model 20 | 1918 — September 11 | 23999 | |
| Model 21 | 1921 — April 11 | 27457 | |
| Model 21A | 1922 — August 18 | 31938 | |
| Model 21B | 1930 — March 25 | 46901 | |
| Model 22 | 1920 — November 29 | 27410 | |
| Model 22A | 1922 — October 24 | 32314 | |
| Model 22SK | 1923 — August 15 | 34521 | |
| Model 22B3 | 1930 — April 15 | 47040 | |
| Model 24 | 1921 — March 13 | 27186 | |
| Model 25 | 1924 — April 1 | 36241 | |
| Model 25 (new style) | 1927 — June 1 | 43099 | |
| Model 25 (new style base) | 1927 — June 23 | 43099 | |
| Model 25B | 1930 — January 20 | 46636 | |
| Model 25B (Blue Streak) | 1936 — June 15 | 50599 | |
| Model 25C | 1933 — July 26 | 48734 | |
| Model 25E | 1940 — November 1 | 54617 | |
| Model 26 | 1924 — April 1 | 36242 | |
| Model 26 (new style) | 1927 — May 1 | 43121 | |
| Model 26 (new style base) | 1927 — May 17 | 43121 | |
| Model 26B | 1930 — January 30 | 46726 | |
| Model 26B (Blue Streak) | 1936 — May 5 | 50547 | |
| Model 26C | 1932 — August 9 | 48541 | |
| Model 26C (Blue Streak) | 1936 — May 7 | 50549 | |
| Model 26E | 1940 — October 29 | 54543 | |
| Model 27 | 1935 — September 23 | 49999 | |
| Model 27 (Blue Streak) | 1936 — June 20 | 50664 | |
| Model 28-3 | 1935 — May 16 | 49864 | |
| Model 28-3 (Blue Streak) | 1936 — May 7 | 50548 | |
| Model 29-2-90 | 1937 — April 21 | 51655 | |
| Model 29-4-90 | 1937 — January 11 | 51293 | |
| Model 29-4-72 | 1937 — February 23 | 51436 | |
| Model 29-4-72/90 | 1937 — February 18 | 51458 | |
| Model 29-4-90 (cannon relocated) | 1949 — June 24 | 61942 | |
| Model 29 (Hand Shift-Electromatic Safety) | 1951 — Februari 14 | 64380 | |
| Model 30-2-90 | 1937 — April 1 | 51570 | |
| Model 30-2-72/90 | 1937 — March 29 | 51568 | |
| Model 30-4-90 | 1936 — December 21 | 51244 | |
| Model 30-4-72/90 (Aux. Keyboard) | 1946 — August 27 | 57276 | |
| Model 30-4-90 (2 aux.) | 1937 — April 2 | 51578 | |
| Model 30-4-90 aux keyboard) | 1946 — December 18 | 57404 | |
| Model 30-4-72 | 1937 — June 10 | 51757 | |
| Model 30-4-72/90 | 1937 — March 15 | 51466 | |
| Model 30-4-90 (cannon relocated) | 1949 — July 2 | 61945 | |
| Model 30 (Hand Shift-Electromatic Safety) | 1951 — March 26 | 64358 | |
| Model 31-4-90 | 1937 — December 8 | 52397 | |
| Model 31-4-72/90 | 1938 — March 15 | 52652 | |
| Model 31-4-72 | 1938 — January 31 | 52501 | |
| Model 31 (cannon relocated) | 1949 — February 14 | 61448 | |
| Model 31 (High Speed Features) | 1957 — March 6 | 67851 | |
| Model 32-4-90 | 1938 — January 28 | 52451 | |
| Model 32-4-90 aux. keyboard) | 1945 — November 30 | 57211 | |
| Model 32-4-72/90 | 1938 — March 10 | 52479 | |
| Model 32 (cannon relocated) | 1949 — March 2 | 61469 | |
| Model 33-4-72 | 1938 — November 9 | 53034 | |
| Model 33-4-72/90 | 1940 — April 12 | 54089 | |
| Model 33-4-90 | 1947 — March 24 | 57117 | |
| Model 33 (Electromatic Safety cannon relocated) | 1951 — April 27 | 64322 | |
| Model 34-4-72/90 (1 aux.) | 1940 — July 11 | 54066 | |
| Model 34-4-90 aux. keyboard) | 1948 — February 27 | 58686 | |
| Model 34-4-72 | 1948 — April 30 | 59124 | |
| Model 34(Hand Shift-Electromatic Safety cannon relocated) | 1951 — November 13 | 64671 | |
| Model 35-4-72/90 | 1941 — September 22 | 55046 | |
| Model 35-4-90 | 1944 — October 24 | 56352 | |
| Model 35 (Hand Shift-Electromatic Safety cannon relocated) | 1951 — Februari 23 | 64418 | |
| Model 36-2-72/90 (aux keyboard) | 1941 — December 1 | 54853 | |
| Model 36-4-90 (aux. keyboard) | 1945 — February 10 | 56353 | |
| 36 (Hand Shift-Electromatic Safety, cannon relocated) | 1951 — Augustus 9 | 64585 | |
| Comet | 1950 — December 20 | 100 | |
| Comet (Mat Glide System) | 1959 — August 19 | 2895 | |
| Elektron | 1962 — November 23 | 70298 | |
| Elektron II | 1963 — March 15 | 70520 | |
| Elektron Mixer | 1963 — September 11 | 70697 | |
| Elektron (Auto-Controlled) | 1965 — December 27 | 72084 | |
| Elektron Mixer (Auto-Controlled) | 1965 — June 24 | 71873 | |
| Elektron Meteor | 1967 — June 14 | 72887 | |
| Junior (One-Letter), (Low Base) | 1902 — June | ||
| Junior (One-Letter), (High Base) | 1907 — July | 154 | |
| Junior (Two-Letter) | 1908 — January | 169 | |
| A-P-L | 1932 — December 9 | 48605 |
* According to Spencer (n.d.), "some tired or rebuilt Model 5's carry a factory number below that of the first Model 5 which was shipped from the Linotype Factory. This was conclusive evidence that the machine originally was either a Model 1 or Model 3. The first Model 5 was No. 9851 and was shipped in February 1906."
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