The Smart dutch oven that you show has a different attachment. There are two extra bits on either side of the round knob part. This makes it lock into the straight up position, and by pushing straight down, it disengages, allowing the bail to fold down. The loops on the ends of the wire bail are elongated to fit into the slot formed by the bail attachments.
As you say, GSW also made them just like this, along with Smart, Findlay and Eaton's, sometimes marked "Eatonia".
Most of the time they will have a plated lid, like the one you show, except for the Findlay. I have never seen a Findlay with a plated lid.
I don't have a 14 in this style, but I have seen them, and also 11 and 13. The number on the lid works out to be the diameter of the lid in most cases.
Chris