I just got another featherweight. Love them all. It definitely looks like one to me. You can get the serial number from the bottom to date it. As for the case, I've never seen one like it. It's either been redone or is a reproduction.
You can find out all the infromation you want about them and other vintage machines in the Vintage Sewing Machine Shop moderated by Billy. He's our resident "know-it-all" about vintage machines. Charlee is another that has the knowledge. I'm sure there are others, but they are the only two I can think of right now.