Hello Tammi and PinkCastle,
Vickers machines have the serial number behind the pillar, and they don't have that type of bobbin winder, which I have only seen on German machines.
Muv, I didn't think that you'd miss a Vickers
I was just pointing out that the only somewhat similar stitch length mechanisms that I was finding were Vickers and from a couple of companies down under.
Still looking around when I have the time.