I have an unbranded precision slow motion mount adapter I bought for using a short 70mm refractor as a finderscope for my dob. Unfortunately this solution for mounting this scope doesn't work, as to easily I lose the alignment between them and so decided to use instead proper rings.
It is in very good conditions and I'm asking for it AU$50 shipped included in Australia
Bintel sells an Orion branded one
, which looks identical and very likely they are.
Unfortunately I will not be able to post pics of my one till tomorrow.