Miss Prism

Good mahogany colour.

I'd suggest 0.9mm is nearer the mark. Must be in Guy Williams' book somewhere....

I like the floating track!

On shed at Oswestry, 31 March 1957. It ran with a 2500g tender in BR days.

Probably 2538, a late survivor, but I think most of the ones fitted to Dean Goods were the same. Here's 2571 at Didcot in 1936:

http://bambrickstudio.co.uk/

Thanks Justin. That's one of the Swindon Engineering Society lectures I didn't have a reference to. I'll add it to the gwr.org resources page in due course.

The headlamps are awful.

Although the Kernow is accurate to the preserved 93, the preserved 93 isn't authentic GWR in some aspects. For diagrams O and R, the following relationships apply to the front end panelling: Apologies for making these comments at a very late stage - I should have done them yonks ago.

I hope the size of the cab roof slider has been reduced from the previous CAD version (which was way too big).

I'm not convinced about the scroll iron shape at the top or the bottom or its pitch.

Martin Finney MF3 ATC shoe I get the impression that while the plunger and its housing was standard, the bracketwork supporting it varied between classes. I've never seen a good drawing.

Happens all the time doesn't it?

A left-hand side view of 1573 minus its rear rods, at Newton Abbot I think. The shape of the safety valve cover on these early Buffalos was more curvy than the post-1902 shape. The bunker shape is an early one, and isn't quite what AG provides for the later engines, but it's probably close enough. Note no tool boxes on these early engines, and the forward placement of the injectors.

Must admit I'd never really thought about the fireiron issue before, and it's interesting that prairies did not have the usual 3 or 4 fireiron curly bracket things on the rear face of the bunker, whereas all panniers do. GWR standardisation strikes again... ahem Whether stashed on top of prairie tanks or on the back of pannier bunkers, ready access to fireirons would seem to be difficult in either case, so I guess some form of in-cab stowage was also present on panniers. There is of course ad hoc stowage as well.