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You didn't say whether it is a zig zag or straight stitch only machine. When I'm looking for badged machines I will usually look at the following links to see if there is anything similar there (except for clones, I know what those are),
Vintage Japanese 'Badged' sewing machine with fancy stitches
Will the Real 15 clone please stand up
Vintage Japanese 'Badged' Zig Zag and Straight Sew Sewing Machines
Another place I check (if it is a Zig-Zag machine) is
http://www.sewusa.com/Sewing_Machine...g_Machines.htm
Generally, any place that metal rubs metal needs oil. If there are plastic parts, it is generally suggested to keep oil
off of those.
Janey - Neat people never make the exciting discoveries I do.