Singer Model 12
The Singer Standard Model 12 began in 1865; later models had a rectangular base.
See here for an article about an Industrial version of the 12K.
From 1870 it was available for semi-industrial use with a longer arm as the Model 13.
The Singer Standard Model 12 began in 1865; later models had a rectangular base.
See here for an article about an Industrial version of the 12K.
From 1870 it was available for semi-industrial use with a longer arm as the Model 13.