Yes it was owned by Chris Goffey. I was going to have a look at it when it was for sale in a garage near Oxford and actually spoke to Chris after tracking his phone number down.
Eventually bought a different TA though, a BL, simply because I couldn’t fit a BN in my garage at home 😉 .
Only Slough cars had trafficators as far as I am aware and a Belgium/French car pre 52 didn’t have flashers either so looks like someone added them in the past.
For French colour info take a look at: http://www.cats-citroen.net/home.html