Iron Eagles o7
There are rumours that one was smuggled out of Canada and one of the Orenda Iroquois Series II engines was found in the UK and was one of a matched pair for an Arrow.
https://www.ctvnews.ca/avro-arrow-mystery-deepens-with-u-k-discovery-1.741854
Arrow ejector seat found in the UK:-
https://www.jetartaviation.co.uk/2011/12/avro-arrow-cf-105-ejection-seat-found-in-uk/
The full size one on display is a replica. I think it may be RL207 that isn't accounted for and could be the one that is out there somewhere.
Proof of death is as equally important as proof of life. when it comes to RBG. Someone had better ante up.