Any chance of photos?
In return, I offer a photo of the Concorde HF antennas....
Two large fibreglass-covered "saw-cuts" in the vertical fin lower leading edge.
For some unknown reason they weren't painted on Concorde 002.
They are the same on all Concordes, but painted on all the others.
And for the geeks and nerds and boffins among us : they were 'slot' antennas, not the most efficient on HF, so there was a lot of HF current circulating in the tail structure...
CJ