Help with choosing a semi heavy duty vintage sewing machine! OR for a similar price should I buy a new singer "heavy duty" would it be as capable as these old machines
Industrial Sewing Machine Primer — Ashley and the Noisemakers
The Green Shed - Singer 320K Semi Industrial Sewing... | Facebook
SEMI INDUSTRIAL SEWING MACHINE 20U-105C-13 ZIGZAG SINGER in São Paulo, Brazil
Singer Electric Sewing Machine Model 339 Semi Industrial Working | eBay
Singer Sewing Machine Models by Year
Self sufficiency and the semi-industrial sewing machine | oldsingersewingmachineblog