It's a genuine 99 - don't know if it's K or not -depends on where it was made. The tension does not look original though.
It's an older one that someone has put a different tension on. The bobbin winder is original. Who know where the foot and screw holding it on came from - they look much newer than the machine.
The lack of inspection plate on the back - I can't recall if the 99 has one or not. I do know that it takes something a bit unusual for mounting the light, but don't recall why . . . just that what works on the 128 does not work on the 99 - or at least not on the one I was dealing with.
Here is mine - someday she may get cleaned up. I'm pretty sure this is US made
This is a newer style - this one is a 99K
And an even newer style - also a 99K
