I don't know the year of this vacuum, but I think is older than 20 years.
It don't have the name of the brand, but I think is a metrovac.
This vacuum was used to clean printer and computer.
The guy at my job was going to throw this vacuum, because it was not used for many year.
I have a handvac from the 80s too, I really like it. Here's a video of it, and it shows the way the fan and motor are setup which is kinda strange, it has no fan housing...
This is the pictures of the motor, I didn't remove it because it was clean.
It a normal vacuum motor.
I don't know if it normal for this vacuum, but the housing get really hot.