SDA = Singer Driving Attachment (to allow many machines to share a common rotating shaft)
The numbering is loosely chronological they started around No.1 and sort of worked their way up.Ībbreviations should be obvious and will include: Occasionally there will be a domestic that apparently has the same number as another industrial model I have no idea why. Singer inherited the W numbers from Wheeler and Wilson - maybe it had already established a strong customer base used to W&W numbering - anyway, the numbers were preserved (along with many of W&W's unique design features). There is no similarity, for example, between the model 12k and the model 12w. They are in number order first, then by factory order alphabetically. I've duplicated the information, however, where differences might occur.
Often, machines with the same class and variety, but produced in different factories, are identical - but not always. This is almost always reliable but there are anomalies. Just a hyphen was used by the flagship factory in Elizabethport. Johns, Canada 'M' is Italy 'G' is Germany 'C' is Brazil 'U' is Japan, etc. 29k58, indicates Clydebank a 'W' (e.g.12w1) is Bridgeport 'A' is Anderson 'J' is St. The rule of thumb is: a 'K' between the class number and variety (or sub model) number, e.g. Some German and Canadian models are included and, from later years, a few from Japan, Italy, France and Brazil. This catalogue largely reflects the output of Singer's factories in Elizabethport, Bridgeport (USA) and Clydebank (UK). Home Singer Sewing Machine Compan圜omprehensive Singer Sewing Machine Model List Comprehensive Singer Sewing Machine Model List A descriptive list of all* Singer's sewing machine production.
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