Most antique sewing machines do not display the model number anywhere on the machine. If the machine is made by Singer, you can cross the serial number to a model number and "birthdate" at singerco.com. If the machine is made by some other company, you will need to do some research. Needlebar.org has hundreds of photos of antique sewing machines and might be a good place to start looking.
Brother International have several different models of embroidery sewing machines. The company website displays eight different machines that are available for purchase.
Babylock sells sewing machines. There are several different models to choose from depending on the type of sewing done. There are machines for making everything from clothes to quilts.
If you mean models of sewing machine, probably hundreds. Singer started in 1851 and made many industrial models as well as home sewing machines.
Mini sewing machines are available from such companies as Michley, Smartek, Janome, Brother, and Kenmore. Of these, Brother's models consistently receive some of the best reviews.
No. As the world moves modern so do their sewing machines, Most now are made with digital screens.
There are different models of 1951 sewing machines, so it would depend on which model you have.
Juki and Brother make sewing machines that are good.
Some Singer models have very bright lights, especially their mid-level machines.
Sewing machines are very heavy. As such, there is no such thing as a portable sewing machine.
No but the sewing machines thread the needle for you will help.
Present day sewing machines are complex electrical machines.
Yes, new sewing machines come with instructions.