OK set to go… lock freed.
Had to go carefully, and needed your answers first, so thanks.
It was a case of applying plus gas into key slot, and inserting key to lubricate, and
Repeated steering wheel jiggle, but wasn't going to go (I have good experienced feel for this one), SO
- must be tumblers no doubt… I asked myself…and prayed...
Repeated lubrication, and
Tapped barrel with tack hammer (three times of course)
Inserted key, jiggled and turned just the once and, Hey, Presto!
Now I've only to select and order the right Lexia interface and software, wait in for log book to arrive recorded post this week, hoof it over to Citroen HQ with a log book for the pleasure of purchasing the car's immobiliser code, return in time to open the door at the postman's knock with the alexia - complimenting him again on not treading over the flower beds I just seeded, install the software into a macintosh. Hook it up as a go-between car and key, whisper secrets, and get the two married. Then go to bed.
If you've noticed I didn't mention install windows in mac hosted virtualBOx, because I've done that earlier today…. and tested the USB port with windows running…
(also made some spaghetti and ate it).
Excited and tired, life gets just more and more interesting with every new challenge

; hardly compares to swapping over a new key on the old mini van.. that job's for cissiesl…… the Morris mini clubman van got arsoned by vandals - But an ignition key didn't stop them. or if so, I'd till have it.