some bark
Heres a couple of jbps of mine. These first 2 are young regular jbp bark
This one is a lot older but not a corker, just a regular jbp
The next 2 are corkers, both trees were & still are in rehab & it'll be a long time before they can be anything (previous owner neglect)
regular corkbark, even the branches cork
and a winger