En route to the BBC, I happened to walk past the entrance to a small contemporary art gallery, Bartha Contemporary, in Margaret Street. It looked interesting, and turned out to be about to open an exhibition of the work of Alan Johnston, a Scottish minimalist, whose very delicate and refined drawings I have barely seen since the mid-1970s (he was represented by Nigel Greenwood), except in the drawings he has done in the spandrels of the downstairs café at Tate Britain, commissioned by Penelope Curtis:-
| Charles | Saumarez | Smith | 
It should be Bartha NOT Batha – indeed an interesting gallery with a fine record in choosing significant contemporary artists to exhibit. I used to visit it regularly when it was in a house in a road close to Ladbroke Grove
Alan Johnston , I think, may still be Edinburgh based.
Thank you for the correction. Yes, it’s likely to be an Edinburgh connection. Charles