Front view: please excuse the thing hanging off the left maiden - someone wired an old leather piece to it to prevent it from getting lost - the leather piece (the shape of a guitar pick) is actually inserted in a slot in the maiden and then the end of the flyer/bobbin sits in a hole punched in the leather. You can see that the one on the left has been repaired.
The bobbin/flyer combo on the right can be set up just like the one on the left there is the corresponding hardware - it is not in position now because the leather piece is broken on that side.
Back - as you can see it has a little wheel assembly on the back.
A closer view
Accessories? The following pieces came with the wheel but do not have any obvious spot to fit into/onto it. The top two both have holes drilled through them.
One last hint - it is marked "John Sturd Evant."