I know I'm working on a project--or doing my usual late-winter/early- spring maintenance and overhauls--when I'm spending way too much time on eBay.
That's when I start to find all sorts of weird and interesting stuff. To wit:
The seller, in Austria, says it's a French-made, possibly by Specialites TA. I couldn't find any reference to it in TA brochures or catalogues I've located on-line. Given that the cage is French, and looks interesting and well-made, it's easy to understand why the seller might think it's from TA.
The shape of it is echoed, at least somewhat, in the beautiful Nitto R cage. But the Nitto cage is not made to be used with clamps. Perhaps the cage I saw on eBay isn't, either. That leads me to wonder whether whoever made the cage also made the mechanism that attaches it to the clamps--and, according to the seller, allows it to be easily removed from the clamps. Or was it made by whoever bought the cage and installed it on his or her bike?
Hmm...Were water-bottle cages being lifted from parked bikes? I can't think of another reason for a mechanism like that. A decaleur for water bottle cages? What a concept!