How old is that tree?

Here is the link to Ed Dolphin's talk on How old is that tree from Thursday 20th May for Sidmouth Arboretum's Tree Week

https://us02web.zoom.us/rec/share/-N4VY-aEWaBs1E2gmC0R9s9aUnnWovZ4vyGOlDUYWz9btW8dfarcJEVZmhEz1D3Z.C2PcSeAXASaEe2gv

If prompted use this passcode: uspr#P8x