Sewing Machine Research
ISMACS International
International Sewing Machine Collectors' Society

Singer Sewing Machine Serial Number Database

Serial Numbers Beginning with: EF

Letter Register Numbers
From - To
Machine Class
(Model No.)
Quantity Allotted Date Allotted Year Allotted Notes
EF- 000001 100000 15K 100000 March 4 1949
EF- 100001 102000 29K 2000 March 4 1949
EF- 102001 112000 96K 10000 March 4 1949
EF- 112001 137000 99K 25000 March 4 1949
EF- 137001 152000 128K 15000 March 4 1949
EF- 152001 152005 14K 5 March 4 1949
EF- 152006 152055 34K 50 April 20 1949
EF- 152056 152075 145K 20 April 28 1949
EF- 152076 152175 49K 100 May 10 1949
EF- 152176 154175 206K 2000 May 12 1949
EF- 154176 164175 221K 10000 May 23 1949
EF- 164176 164675 46k 500 June 6 1949 Surj.
EF- 164676 194675 128k 30000 June 6 1949
EF- 194676 194680 14k 5 June 24 1949
EF- 194681 204680 95k 10000 July 27 1949
EF- 204681 208680 103k 4000 July 27 1949
EF- 208681 258680 99k 50000 July 29 1949
EF- 258681 263680 206k 5000 August 4 1949
EF- 263681 278680 96k 15000 August 16 1949
EF- 278681 278730 138k 50 August 17 1949
EF- 278731 288730 221k 10000 August 17 1949
EF- 288731 288930 15k 200 September 6 1949 C.S.
EF- 288931 488930 15k 200000 October 11 1949
EF- 488931 493930 29k 5000 October 11 1949
EF- 493931 558930 201k 65000 October 11 1949
EF- 558931 568930 221k 10000 November 7 1949
EF- 568931 568940 14k 10 November 15 1949
EF- 568941 570940 81k 2000 November 23 1949
EF- 570941 600940 128k 30000 December 13 1949
EF- 600941 660940 99k 60000 January 5 1950
EF- 660941 665940 206k 5000 January 5 1950
EF- 665941 675940 31k 10000 January 10 1950
EF- 675941 680940 103k 5000 January 10 1950
EF- 680941 680965 133k 25 January 16 1950 long arm
EF- 680966 681015 138k 50 January 25 1950
EF- 681016 688015 95k 7000 February 10 1950
EF- 688016 698015 221k 10000 February 14 1950
EF- 698016 698065 34k 50 March 8 1950
EF- 698066 698565 91k 500 March 23 1950
EF- 698566 700565 81k 2000 April 6 1950
EF- 700566 700568 6k 3 April 14 1950
EF- 700569 710568 221k 10000 April 24 1950
EF- 710569 790568 201k 80000 May 3 1950
EF- 790569 796568 103k 6000 May 9 1950
EF- 796569 797568 45k 1000 May 11 1950
EF- 797569 797618 138k 50 May 15 1950
EF- 797619 802618 29k 5000 May 25 1950
EF- 802619 832618 128k 30000 May 30 1950
EF- 832619 902618 15k 70000 June 14 1950
EF- 902619 902628 14k 10 June14 1950
EF- 902629 907628 95k 5000 July 17 1950
EF- 907629 917628 221k 10000 July 19 1950
EF- 917629 919628 81k 2000 July 20 1950
EF- 919629 922128 206k 2500 July 25 1950
EF- 922129 942128 99k 20000 July 27 1950
EF- 942129 945628 31k 3500 July 27 1950
EF- 945629 945638 47k 10 August 11 1950
EF- 945639 946638 16k 1000 August 16 1950
EF- 946639 949138 96k 2500 August 18 1950
EF- 949139 955138 103k 6000 August 28 1950
EF- 955139 962138 31k 7000 September 22 1950
EF- 962139 966138 206k 4000 September 22 1950
EF- 966139 999999 15k 33861 September 22 1950