Paul
Yes it is the one at Markham, and I have taken loads of photo's of it myself.
The award winning model at Bolton is one of two made by Peter Southworth and is identical to mine, in fact it uses the same patterns that were made by Peter, my late father bought Peters third set of spare castings and started to build the engine in the 1980's then sold it part completed when he became too ill to carry on with it.
Last year I traced it and bought it back in exactly the same state as he had sold it thirteen years previously, and am now working towards finishing it myself.
Peter Southworth never wanted the castings for this engine to be freely available, and gave the patterns to a friend to "BURN", thankfully he could not bring himself to burn them and unbeknown to anyone put them in his loft. Its a long story but they are now safely stored in my loft and will be displayed with my engine when it is finished.
Before anyone asks……I am respecting Peters wishes and not making them available for sets of castings.
I have also been very fortunate in being able to borrow Peters collection of black and white negatives, and am at this very moment scanning all the Pollit & Wigzell photo's that he took at various sites in the 1980's including Agnes at its original location in Washpit Mill.
Phil