The only two cattle vans to be purchased from the Ashbury Wagon & Ironworks Co., Ltd., and delivered in 1877, these two vans were delivered open-topped and later modified; they could be identified by their coil springs whereas the Metropolitan Carriage & Wagon Co., Ltd., stock had leaf springs.  K.3 had a roof added in 1924 and was scrapped in 1960, K.4 remained without a roof until the end, being scrapped in 1964.