On the left is another 'quicky' P4 conversion using a Gibson conversion pack sold by the EMGS, and the source for the EMGS manual sheet for the conversion. It has been renumbered to 47465, a Bath Green Park loco in the 50s and 60s. On the right the first loco I've ever built, from scratch in plasticard running on a Perseverance etched chassis and Gibson wheels as S&DJR No.24 as running in 1929. If you look you can see the obvious height difference - because I didn't realise when making up the chassis that it was designed for a brass loco with very thin footplate - and my plasticard loco has a footplate over 1mm thick - so a bit more work there to lower the body before I add brake gear. The height is really critical if using Dingham couplings, it needs to be within 0.5mm for them to couple easily. The loco took over 20 years to finish as I began it as a student and then it languished incomplete for many many years! Note the chimney is thicker than the usual 'Jinty' chimney. Looking at the photo HC Casserly took in 1929 at Radstock of No.29 when brand new the chimney doesn't look thin - compare with 47465.

some pictures of the Bachmann chassis during conversion