Here it is with the bark removed. After taking the photo I returned the ring of bark and bound it up with grafting tape. The branch never missed a beat and very quickly healed/sealed up the cuts. On the following photo you can see the cut site and the swelling that arose from the recovery.
I struck this tree from a small cutting in 2012. That makes it 4 years old. The sacrifice branch has made a big difference to the development of the trunk and taper.
This is the piece of bark removed.
And where it came from.
Here it has been returned.