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International Sewing Machine Collectors' Society

The purpose of the International Sewing Machine Collectors' Society is to foster the collecting of, and research into, sewing machines.

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

ISMACS is an organization totally independent of all sewing-machine manufacturers, past or present and is not affiliated with any of the companies mentioned in these pages.  Please Note: Do not contact any ISMACS official in an attempt to solicit a valuation - it is not possible other than by hands-on assessment and your request will be ignored.

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