Linhof Rapid Change Adapter?

Hey Guys,

I bought a linhof technika IV kit a whiles back and this item came with the kit. I could never get it to fit on the linhof and have since sold the camera. But I'm wondering if anyone knows what this was made for and it's value?

Just saw this post from last year. It is a rapid change adapter to fit the Super Rollex roll film holder. I happen to be looking for something like that. Let me know if you still have it and would like to sell it.