What is the serial number on the machine?
I was under the impression that the filigree decal was only into the 1940s and ismacs seems to confirm that:
http://ismacs.net/singer_sewing_mach...ic-decals.html
Their serial number charts can be read wrong causing some confusion.
The hinge looks about right except that it's pulled out which likely means that the screw that's supposed to secure it to the base is missing - very common.
I also agree, please have the wiring addressed before plugging it in and using it.