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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: AT
Letter Register Numbers
From - To
Machine Class
(Model No.)
Quantity Allotted Date Allotted Year Allotted Notes
AT- 000001 001000 261 1000 January 19 1971
AT- 001001 001500 302 500 January 29 1971
AT- 001501 017500 717 16000 May 24 1971
AT- 017501 032500 719 15000 May 24 1971