Welcome. What kind of information are you wanting. It appears that Vassar is a name used by National (as well as a couple of other makers) according to
http://needlebar.org/main/makers/usa...l/index.html#v To me it looks like a
VB-TT Type 3 or VB-TT Type 5 or maybe as seen at
http://needlebar.org/main/national/index1.html Manuals for similar machines although a couple of them are for electric machines, but the threading should be the same.
https://ismacs.net/newhome/manuals/n...ine-manual.pdf
https://ismacs.net/national/manuals/...ine-manual.pdf
http://needlebar.org/main/manuals/re...ay/1index.html
Unfortunately the person who knew about which needles went with which machines recently passed away. I'm fairly certain that it would take what is called a 20x1 needle. Some have dropped the modern 130/705 needles a bit and had them work. There is someone on another forum had a solution to having to figure out how far to drop by cutting a magnet to work. If you search for "
15x1 rather than 20x1 needles" you should be able to find it.
I think JoeJr had a similar (electric) machine
https://www.quiltingboard.com/vbulle...a-t310944.html Maybe he will pop in and confirm or deny my notion that needle system needed for these machines is a 20x1.