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Remark  the crocodile skin effect in the balance wheel
The nice logo decal (not badge)  “Art Nouveau” style, with the silhouette of the two spools machine

KÖHLER, ca. 1925

Serial #: 1.731.627
Condition:  Working. Very good decals conservation.

It was based too in the Singer 15K. Now the size is larger and the bobbin winder is  in higher position. No drive belt metallic protection. Reversing handle and stitch regulator

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