Is that an Ex-Swiss Air Force Venom Zac ?
It is, formerly J-1634 and then HB-RVA on their civil register. There's a great article on John and his Venom by a talented young guy*
hereMind you, the RNZAF did have plenty originally...
We leased around 45 for Malaya but unfortunately they never made it here. Two of the three Kiwi warbird Venoms wore/wear the scheme of WE434 from that bunch.
*they've removed my byline! What the hell?!