This is interesting. I've not seen a greenish-gold version of the 740. This is another of the Gritzner-Kayser series machines and I believe this one was badged Gritzner, White, Kenmore, Pfaff, and Domestic. The Domestic version is my favorite but the White is also really beautiful. Here's mine (with two missing screws on the front plate):
[ATTACH=CONFIG]500796[/ATTACH]
Mine was also in a cabinet with a spring-loaded lift but I removed it because the cabinet is one of those very large desks with long panels that open on both sides.
It's odd you found yours for $25. Mine was $20 and I remember being surprised when I found it (about a year ago). These are very good machines. I suppose people just want them gone.