Visited Warley today (Sun) and also asked about Blue Peter & was told should be mid to late Dec also told no more 60537 till around same time! Colour of Blue Peter in show case same as other BR green A1's, 2's. On a final note ref smokebox number/handrail detail, Mods were started Nov 1954 (lowered number & lamp iron except 60534 number only). In 1962 A2's shopped at Doncaster for heavy repair had lamp irons lowered further along with fitting of split handrails. Loco's completed this way were 60527/8/30/2/3/5. Please don't shoot the messenger this info comes from RCTS part 2A along with pics from other books on th A2, hope it helps. I am just completing first Bronzino so will try & put picture on when finished.
cheers
Ian H