1964 HIGH VALUE PACKET SERVICE/£1 CASTLE ISSUE. Linen parcel tag (usual slight creasing) sent registered mail with red "HVP" label with 9d Wilding and £1 Castle London to "BANK OF SCOTLAND...EDINBURGH" cancelled "REGISTERED/1 MAY 64/LOMBARD STREET" oval datestamp with "BANK OF SCOTLAND" receivers datestamp later that day. Very scarce commercial usage of the £1 Castle. (Ref 77625).
