- Serial Number List
- - Milwaukee Works
- 1905-1922: Engines and Tractors (by serial number prefix)
- - Title page
- Prefix letters assigned to Engines (in order by horse power)
- - 3/4 - 4 HP
- - 4 - 6 HP
- - 8 - 10 HP
- - 12 - 20 HP
- - 25 - 50 HP
- Prefix letters for Side Shaft Engines
- Tractor Trucks
- - 15-30 HP
- Engine and Tractor Serial Numbers (in order by serial number prefix)
- 1923-1942: Tractors, Engines and Milking Machines (by model)
- - Title page
- Serial Number Prefix Letters
- - undated
- Power Units
- - 300, 1938-1941
- - 300 Engine, 1929-1941
- - 4 cylinder diesel motor, May 1, 1933
- - PD-40, 1937-1941
- - PD-40 Engine, 1933-1940
- - PD-80, 1937-1940
- - PD-80 Engine, 1936-1938
- - U-9, 1941
- - U-9 Engine, 1941-1942
- - IUD-6 Engine, 1941-1942
- - UD-6, 1940
- - UD-6 Engine, 1940-1942
- - UD-9, 1940-1941
- - UD-9 Engine, 1940-1942
- - UD-14, 1940-1941
- - UD-14 Engine, 1940-1942
- - UD-18, 1940-1941
- - UD-18, Feb. 1942
- - UD-18 Speed Chart, undated, top of page
- - UD-18 Speed Chart, undated, bottom of page
- - UD-18 Engine, 1940-1942
- Industrial Tractors
- Farm Tractors
- - 10/20, 1923-1940
- - 1923-1930
- - 1931-1933
- - 1934-1940
- - Narrow Tread, 1927-1934
- 15/30 (includes 22-36)
- - 1926-1928
- - 1928-1932 (includes 22-36)
- - 1931, Dec.: Special Numbering Symbols
- Weekly Tractor Changes, 1931-1933
- W-30
- WA-40
- WA-40 Kerosene,
- WD-40 Engines
- WD-40
- W-9 Engines
- W-9
- WD-9 Engines
- WD-9
- Engines for Other Works
- - WD-6 Engine, 1940-1942
- - Farmall M Engine, 1941-1942
- - TD-6 Engine, 1939-1942
- - T-9 Engine, 1940-1942
- - TD-9 Engine, 1940-1942
- - T-14 Engine, 1941-1942
- - TD-14 Engine, 1939-1942
- - TD-14 Engine, Feb. 1942
- - TD-18 Engine, 1938-1942
- - TD-35 Engine, 1936-1940
- - TD-40 Engine, 1933-1940
- - Type LA, 1-1/2 - 2-1/2 HP, 1934-1941
- - Type LA, 3-5 HP, 1935-1942
- - Type LB, 1-1/2 - 2-1/2 HP, 1942
- - Type M, 3 HP, 1934-1936
- - Type M, 6 HP, 1934-1936
- - Type M, 1-1/2, 3, 6 HP, 1934
- Diesel Fuel Injection Pumps
- Milking Machines
- 1940-1963: Tractors, Engines and Power Units (by year)
- - Title page
- 1940-1943: Monthly Serial Number Record
- - Title page
- 1940
- 1941
- - January
- - February
- - March
- - April
- - May
- - June
- - July
- - August
- - December (Dec. 31, 1941)
- - December (Jan. 31, 1942)
- 1942
- - December, 1941 [January 1942?]
- - February
- - March
- - April
- - June
- - July
- - August
- - September
- - October
- - [November?]
- - [December?]
- 1943
- 1942
- 1943
- 1943: Bosch and IHC Fuel Pumps
- 1942-1943: Summary
- - left side
- - right side
- 1944
- 1945
- 1946
- 1946, Power Units
- 1947
- 1948
- 1949
- - 1949
- 1950
- - 1950
- 1951
- - Full page
- - left side
- - right side
- 1952
- - Full page
- - left side
- - right side
- 1953
- - Full page
- - left side
- - right side
- 1953: Sept. 9
- 1954
- - Full page
- - left side
- - right side
- 1955-1957: 'A' 4 and 6 Cylinder Injection Pumps
- - Title page
- 1955-1956: Jan.
- - Full page
- - left side
- - right side
- 1955-1957: April
- - Full page
- - left side
- - right side
- 1955-1957: July
- - Full page
- - left side
- - middle of page
- - right side
- 1955-1957: Nov.
- - Full page
- - left side
- - middle of page
- - right side
- 1955-1957: Dec.
- - Full page
- - left side
- - middle of page
- - right side
- 1956
- 1957
- 1958
- 1959
- 1960
- 1961
- 1961, Nov. 24:
- 1962
- 1963
- 1964