PD 501 was the first of a batch of Leyland PD 3/5 in the CMB fleet. This bus served with Southdown Motor Services in England before coming to Hong Kong in 1975 for a new lease of life.This series by Corgi has astonishing quality and unbelievable clear imprints.Many other buses from this series are available too!Unlike their competitors from EFE, Corgi models came with its own acrylic display case. Each models has brief information about the bus and the operator. Great models, railroads collector could display them on O, OO or HO gauge diorama.