The average cost of a Free-Westinghouse electric sewing machine depends on the year it was manufactured and the current condition of the machine. Prices can vary between $25 and $200. These machines are categorized as vintage and it is possible to find some in mint condition.
The Free-Westinghouse electric sewing machines were in most cases manufactured between 1879 and 1955 in the United States by Westinghouse Electric, a power company. The older the machine and the better the condition is, the higher the value is likely to be. If the machine is in a workable condition, then the value will certainly increase.