I have seen alot of Cruisers also, and have never seen this carrier either. I'll try to find one in an old catalog that might show the hinges and latch. Good luck with your sale, nice part you found. JohnI have seen a lot of ConFerr products over the decades, but I have only ever seen a picture of this product, not the actual carrier.
It would seem incomplete, as I don’t see the body side of the hinges or the catch that the latch would connect with.