I bought these a while back thinking I'd experiment with them. Turns out, they were either misrepresented or seller just didn't know correctly what they were. Cleaning out more excess, forgot I had them, and now time to sell them. But, don't want to list them without having a clue what they are.

The one with Freewheel on it is roughly 120mm+ spacing. The other, which I had thought was for a drum brake, is spaced at roughly 96mm or so, measured rather sloppily. I had thought maybe tandem? Curiously, I did try to thread on a FW to the narrow one and it went on perfectly. Any thoughts on these? Thanks!