No, not a good deal.
It's not a 1919 model, as a 1919 machine would, most likely, be a treadle or hand crank. That's more likely from the 40's or 50's if it does reverse.
The model 66 was Singer's bottom of the line (least expensive) machine. It should sew just fine, but it's way overpriced. The cabinet is not a top of the line cabinet, either.
It's not in great condition (decals and finish), either.
As someone who loves sewing machines, I would not buy it, even if it was priced right. The 15-91 and 201-2 from that same era are much nicer machines, and generally don't cost any more than a 66. They're going to be quieter, smoother and a real pleasure to sew on.
The only exception to that would be if it was a 66 with really nice decals in good condition as I mentioned in my previous post. In that case it would be worth $250.00 or more.
I agree that it's worth $50.00 or so, if you have to replace the wiring and pedal, even less.
bkay