I just bought a Double Duck Satinedge at an antique store for $10, and I will use it to practice my honing while my new blade gets honed by a honemeister. What did I get?

Is this a good blade? It has tarnish on the blade and a one little spot of rust on the tang, and it has a very small nick right at the toe. I tried to send a picture, but my phone is not connecting. I will try to get a picture with my camera once I get home tonight.

Is this a good blade historically? Thank, guys.