Album

Before 1600	Year
Abacus (China)	3000 BC
Abaci (Rome)	Circa 200
Schoty (Russia)	Circa 1600
Abacus (France)	1969
Abacus (Russia)	1986
Abacus (Now)	1997
Leonardo's Design	Circa 1500
1600's
Napier's Bones	1617
Shickard's Calculating Clock	1623
Shickard's Replica	[2001]
Pascaline	1642
Stepped Reckoner	1674
1700's
Poleni	1709
Leupold's Machine	1727
Braun & Vayringe Calculator	1735
Hahn's Calculator	1774
Stanhope's Machine	1775
1800's
Arithmometer	1820
Babbage Engine	1832
Analytical Engine	1834
Thomas Fowler's Calculator	1840
Scheutz Engine	1853
Hill's Machine	1857
Piano Arithmometer	1855
Baldwin	1873
Stephenson	1873
Odhner - Russia	1874
Odhner	1878
Verea's Machine	1878
Burkhardt Arithmometer	1879
Burkhardt Arithmometer 2	18??
Macaroni Box	1885
Original Odhner & LUSID	1886
Comptometer Wooden Model	1887
Comptograph	1889
Burroughs	1889
Bollee	1889
Brunsviga	1892
Brunsviga A	1892
Brunsviga B	1894
Millionaire 1 Millionaire 2 (Internals)	1892
Algebraic Machine	1895
Saxonia	1895
American  Arithmometer	1898
1900's
Calcumeter	1901
Baldwin 1902	1902
Dalton	1902
Adix	1903
Ensign	1904
Comptometer Model A	1904
Mercedes Euklid	1905
Burroughs 1	1905
Ray Figurator	1905
Austria	1905
Austria	1906
Archimedes	1906
Comptometer Model B	1906
Liliput	1906
Seidel & Naumann - XxX	1906
TIM	1907
Pangborn	1907
Lightning	1908
MADAS	1908
Comptometer Model C	1908
Burroughs 3	1909
Kuli	1909
Mechanical Accountant	1910
Monroe	1911
Monroe G	1912
Eclair	1912
American	1913
Remington Rand	1913?
Monarch Remington Rand	1913?
Comptometer Model E	1913
Comptometer Model F	1914
Victor	1918
Facit Original	1918
Facit Original	1918
Rapid Calculator	1918
Austin	c.1920
Addometer	1920
Sundstrand	1920
Comptometer Model  H	1920
Burroughs Portable	1920
ASTRA	1922
Monroe Electr	1922
Monroe K	1922
Scribola	1922
Wales	1923
Marchant	1923
Demos II	1923
Felix	1923
Facit Standard	1918
Walther	1924
Marchant K-C	1925
Todd	1926
Comptometer Model  J	1926
ADDO Mod 9	c 1930
Burroughs 5	1930
Walther TASMA	1931
Facit T	1932
Plus Half Keybd	1932
Torpedo Half Keybd.	1933
Comptometer ST Model	1935
Facit TK	1936
Monroe MA7 & Monroe-Matic	1937
Facit EA	1939
Comptometer WM	1940
Facit ESA	1945
Contex Half Keybd	1946
Enigma	1947
Esacta	1947
Burroughs 49	1949
Curta I	1948
Curta II	1954
Figurematic	1954
Madix	1950
Numeria Comptometer	1952
Friden SRW	1952
Everest	1958
Busicom HL-21	1960
Precisa	1960
Alpina	1961
Alpina	1961
Facit 1006	1967
Odhner 1207	1969

X-Number World

Revised:
September 21, 2007.