I posted this on the vintage thread also, but got the Spartan running last night. The pedal control was shot, so tried another, and there was loose wires in the motor - got that taken care of - this little thing flies! As Billy says, it might be the duct tape on the case (cracked and broken) LOL
I'm adding it here because it's another to be included in "recognizing Old Singers"
The Spartan is a stripped down 99 - a 192 actually, made by Singer and had no light installed. Another small ¾ size machine - you can use the 99/185 manual. If you look real hard on a Spartan you can see the 192 on the reverse control.