Inspiring Quilters, Stitch by Stitch
If you have a Singer (which is the only ones that I have that is old) there is a website where you can look up your serial number and it will tell you when and where it was manufactured. Hope that this helps
I know with singers somewhere on the body is a serial #. on a FW it's on the bottom, so just turn it over and look, and there is a website that will date singers. But I don't know about dating other machine models.
Bridget. With a singer you can find out the year with the serial number. I believe it is the same with most other older machines. I did a search online for the Necchi I had with the serial number and had found out it was a 1951. My singer featherweight I know the date because it is a centennial and had the sticker on the front