I know very little about the Valentine but I do have access and permission to share digital images from two Vickers Works albums of photographs. The majority are of interwar subjects and I have posted these on my blog Interwar Tank Development., but there are a small number of WWII vintage. I posted this image of a 17pdr SP/Archer with a factory fitted armoured overhead canopy on another thread: Some of the other Valentine photos are of various other SP and other variants and prototypes. They are high quality photographs and I am not sure if they will have been published elsewhere; there seemed to be interest in them from the other thread so I am posting them here. (Mods - if it is appropriate to move them elsewhere please do so, but there seem to be a lot of Valentine topics). The images are reproduced with the permission of Beamish Museum, whio retain their copyright. It would be interesting if those with more knowledge could identify each vehicle more authoritatively. Gun tanks: I think this is the Mk IX: And Mk XI: 17pdr SP (Archer) and with armoured canopy (as above): Other SP (prototypes?) Anti tank? I would be interested if anyone could identify the gun Possibly 25 pdr SP in rearward facing barbette? Funnies DD Flail tank Bridgelayer What is this? Heavy agricultural tractor? Some vehicles have clearly visible census numbers so someone cleverer than me may be able to use these to identify particular vehicles.