New please help
This is my first time posting here and I would love to ask for some help. A little background my mother-in-law was an avid antique sewing machine collector and she recently passed away. My father-in-law has asked me to sell her machines and cabinets for him and I know nothing about sewing machine let alone antique ones I was wondering if you all could help me start to undertake this project. I have 16 machines to learn about and try to sell and I do not even know where to start. I don't know any models I have some half way decent photos, manufactures and serial numbers. I have found a little about some of the Singers but am coming up empty on these: White Rotary (believed to be from 1915) Davis, Minnesota, Wheeler and Wilson, and National Sewing Machine Company. Any help at all would be greatly appreciated. I think it would not fell like quite the undertaking if I had a solid place to start.