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That sure looks like the same badge, all I can make out is the red S with the green behind that. I don't see the standard S/N area

all the ones ( clones) I've have the knob on the bed, sewmaster was a clone name. the singer on the arm is real, but to worn to say much more without having it here ..

I keep stirring brain cells. I think I've seen this in the past either in person or in photo's.