Originally Posted by butterflywing
i just looked and on mine there is a lever on the right-hand side, on the pedestal, facing me, and on the top of the lever plate it does say BACK TACK.
the number is EJ 252242.
Alrighty then, you have a 99K with 30000 of them allotted on November 17 1953.
I should have the plate here and the belt for it. I need to check the part numbers out for the belt to make sure. Also it uses the Class 66 Bobbins so you can get then pretty much anywhere but make sure you use the METAL ones!! Plastic bobbins and vintage machines go together like oil and water, they just do not mix.
Billy