Just visited the
Southwest Soaring Museum in their new hangar at Moriarty, NM just south of I-40. Amongst a fascinating collection of gliders & motor-gliders from 1928 to present, they have two ex-RAF Slingsby machines: a T.21B, WB941, and a T.31, XE785. The latter has the following still on its tail:
SSK/R1416 St ATHAN TITANINE
I'm sure the Museum would love hear from anyone who flew either aircraft or has photos of them in service. And, of course, if you're in the area, stop in for a great view of gliding from it's beginnings (they have early German & US designs as well as British) to contemporary.