I'm going to guess that it is probably a Japanese badged machine. Does it have zig zag?
You may be able to find one that looks like it at
http://www.sewusa.com/Sewing_Machine...g_Machines.htm or in the Japanese fancy stitches thread here in the vintage section.
If the machine is mostly complete and functioning it probably is a decent machine. Some things are fairly easy to replace or fix... others not so much.
Janey - Neat people never make the exciting discoveries I do.
ETA - check the pictures of machines
Vintage Japanese 'Badged' sewing machine with fancy stitches
Vintage Japanese 'Badged' Zig Zag and Straight Sew Sewing Machines
If you find one that looks like the one you can get - you can copy and paste the link. Pictures really do help.