Complex sentence: Yeadon described 561 (the prototype) as being the only one built with tapered buffer housings, this is incorrect There exists a photo of 567 in MSLR livery that definitely has tapered housing buffers, as does the photo of 565 in GCR livery.
Split into simpler sentences: Yeadon described 561 (the prototype) as being the only one built with tapered buffer housings, this is incorrect. There is a photo of 567 in MSLR livery that definitely has tapered housing buffers, as does the photo of 565 in GCR livery.