Great Britain 1929 GV UPU 1/2d Control single L29 SG 434 mint

Great Britain 1929 George V UPU HalfPenny Control single L29 mint. Stamp is mounted mint/mint hinged, has a corner crease. SG 434. Cat £25. Winning bidder will please pre-pay plus postage and insurance (if required). I accept Paypal which is the only form of payment I can accept from International buyers. Personal cheques and postal orders can only be from the UK and cheques must clear before item is sent. I offer immediate shipment on receipt of