Welcome to QB. It looks like a stretched/modified Singer sewing machine. There may be a serial number at the bottom of the pillar on the bed of the machine.
I found a couple of threads about Wow Sewing machines -
Wow quilts stretched Singer, Help and
Does any one have a Wow Quilting Machine? I was able to find an archived link but it doesn't have a whole lot of information and looks like they were (no longer around) using some 201s as well as the 15s. I can't verify which bobbin it uses but it sure looks like a class 15 bobbin and fairly certain that it would use 15x1 needles (regular domestic needles). I'm wondering if
http://ismacs.net/singer_sewing_mach...ion-manual.pdf would be helpful. It looks like setting the needle and inserting the bobbin should work for your machine.
Janey - Neat people never make the exciting discoveries I do.
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