Serial Number List of Vintage Sewing machine

Serial Number List Dating Singer Sewing Machines These tables from Singer publications, they show the dates for a particular range of serial numbers for the different Singer plants. PLEASE NOTE: R-series was issued before J-series V-series was issued before F-series If the information is not listed here... I do not have it.
ELIZABETHPORT PLANT
		Year of issue
		From		To
No Letter Prefix prior to 1900
Letter N series		1900		1900
Letter L Series		1901		1901
Letter K Series		1902		1903
Letter B Series		1904		1905
Letter D Series		1908		1909
G-1,000,000 to G-2,500,000		1910		1912
G-2,500,000 to G-4,400,000		1913		1915
G-4,400,000 to G-6,500,000		1916		1918
G-6,500,000 to G-8,500,000		1919		1920
G-8,500,000 to G-9,999,999		1921		1923
G-1 to G-999,999		1924		1924
Letter F Series		1910		1920
Letter Y Series		1925		1925
LETTER SERIES
AA series		1924		1926
AB series		1926		1928
AC series		1928		1930
AD series		1930		1935
AE series		1935		1938
AF series		1935		1938
AF series		1938		1941
AG series		1938		1941
AG series		1947		1947
AH series		1947		1948
AJ series		1948		1950
AK series		1951		1952
AL series		1953		1955
AM series		1955		1959
AN series		1959
ANDERSON PLANT
	Year of issue
	From		To
Letter NA series	1951		1959
Letter NB series	1959		1961
Letter NC series	1961
ST. JOHNS PLANT
	Year of issue
	From		To
Letter JA series	1924		1936
Letter JB series	1945		1948
Letter JB series	1936		1948
Letter JC series	1948		1954
Letter JD series	1954		1961
Letter JD series	1959
Letter JE series	1961
CLYDEBANK PLANT
	Year of issue
	From		To
Letter ED series	1941		1947
Letter EE series	1947		1949
Letter EF series	1949		1949
Letter EG series	1950		1950
Letter EH series	1951		1952
Letter EJ series	1953		1954
Letter EK series	1954		1956
Letter EL series	1956		1956
Letter EM series	1956		1957
Letter EN series	1958		1959
Letter EP series	1959		1960
Letter ER series	1960		1960
Letter ES series	1960		1961
Letter ET series	1961
BRIDGEPORT PLANT
	Year of issue
	From		To
W 1,500,000	1954

Thank you to Sarah for the above information