This Singer 31-15 was used at home for many years. Although I do not know the capabilities of this machine, my mom used it for every type of sewing imaginable as we were growing up. Of the age but the 31-15 model goes back to the early 1900's. Here is a link for the product manual from the Smithsonian Institute. This machine includes the work table with the underside mounted electric motor and foot control unit.
It also includes a dual bobbin holder for large spools of thread. Included as well is the flexible mounted lamp and a multiple number of accessories I assume are for different types of needles etc.I believe it is in working condition as it was used up to a few years ago. Estimated weight of the entire unit is about 100 lbs.
You may also contact me to see it beforehand if you prefer. The item "Singer 31-15 The Industrial Workhorse Of Commercial Sewing Machines" is in sale since Sunday, March 1, 2020. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Textile & Apparel Equipment\Industrial Sewing Machines". The seller is "coachdito" and is located in Marlborough, Massachusetts.This item can't be shipped, the buyer must pick up the item.