Found you a very wee bit, don't know if any of it will help.....
http://www.sewmuse.co.uk/american%20sewing%20machine%20manufacturers.htmFREE SEWING MACHINE CO. EST 1897 – 1953.
FACTORY: ROCKFORD, ILLINOIS.
PRESIDENTS: WILLIAM C. FREE 1897, A. E. JOHNSON 1928
FORMERLY:
ILLINOIS SEWING MACHINE CO. 1890 – 1894.
FACTORY: CHICAGO & ROCKFORD, ILLINOIS.
MERGED WITH:
NEW HOME SEWING MACHINE CO. 1927.
MERGED WITH:
NATIONAL SEWING MACHINE CO. 1953.
MACHINES MADE:
THE FREE MODELS 4 & 5
WILL C. FREE
MODEL C
NEW ROYAL MODELS H, K 1897, P, L 1928.
ROTARY
ROCKFORD
THE FREE 1926
THE FREE WESTINGHOUSE 1926
A good place to maybe make inquiries...
http://www.tias.com/stores/relics/links.htmlhttp://pages.sewing-machine-manuals.com/173/PictPage/1922511738.htmlhttp://en.wikipedia.org/wiki/Singer_Model_27_and_127Knock-offs
White Sewing Machine Company's "Number 8", a copy of the model 127
At about USD100 apiece (about USD2500 adjusted), Singer sewing machines were pricey, even considering the payment plans and trade-in allowances that were offered. The high prices created a demand for knock-offs made by bargain competitors. The main competitors were Sears Roebuck & Co and Montgomery Wards & Co, who sold copied Singer models made by a variety of manufacturers[18]:
Manufacturer Singer Model Knock-off name
Goodrich Machine Sewing Company VS-1? Minnesota
The Free Sewing Machine Company VS-2 ACME
The Davis Sewing Machine Company VS-2 Minnesota-B, Burdick
Illinois Sewing Machine Company 27 New Royal[19]
White Sewing Machine Company 27 Franklin
White Sewing Machine Company 127 Number 8
Domestic Sewing Machine Company 27 Franklin
Domestic Sewing Machine Company 127 Minnesota-A, Minnesota New Model A, Minnesota-H
Standard Sewing Machine Company VS-2? Minnesota-L
Unfortunately no images......
http://www.sil.si.edu/DigitalCollections/Trade-Literature/Sewing-Machines/CF/single-recordonpiece.cfm?CompanyName=Illinois%20Sewing%20Machine%20CompanyPage 17
http://www.sil.si.edu/DigitalCollections/Trade-Literature/Sewing-Machines/pdf/sewing-machines.pdfhttp://www.askmehelpdesk.com/collectibles/illinois-sewing-machine-company-1895-1898-a-446194.html