As you may know, this machine was made by White. There are some things that have come up regarding some differences and threading that are characteristic of these machines. Here is a picture of my White threading. There is a click when it catches the spring.
For loading the bobbin, this thread is helpful
Directions for loading a White rotary bobbin (White Family Rotary, etc.)
These machines are direct drive, which means that the balance wheel turns clockwise when you are looking directly at the balance wheel.
Another thing to be aware of is that many have a flat spot on the drive pulley from sitting against the hand wheel. Some have sanded them smooth, some have used a lathe to make one from a rubber plug, and some have found replacements online. To prevent it from developing a flat spot, it is advised to move the motor away from the machine and stick something noticeable between them so the rubber is not against the hand wheel.
Janey - Neat people never make the exciting discoveries I do.