This is a Saginaw Expand-O-Matic, 6’ dining table. What’s very unusual about this piece is that it’s a writing desk before it’s expanded (others start out as a small hutch). The top “drawer” isn’t a drawer at all. By pulling it out, the expanding metal leaf supports are revealed. You can expand it a little and insert one leaf, or pull it all the way out and insert all 4 leaves, for a total of six feet. It’s an ingenious design, right? This desk/table appears to be a rare item, probably from the 40’s (possibly 50’s). It’s also well made. Even in these picture you can see the dovetail joints in the drawers; a sign of quality workmanship. I bet you have a place for this interesting desk in your home or dorm room.