1963 HIGH VALUE PACKET SERVICE/£1 CASTLE ISSUE. Linen parcel tag (slight creasing) sent registered mail with red "HVP" label with 9d Wilding and £1 Castle from London to "BANK OF SCOTLAND...EDINBURGH" cancelled "REGISTERED/5 DEC 63..." oval datestamps with "BANK OF SCOTLAND" receivers datestamp 5.DEC.1963. Very scarce commercial usage of the £1 Castle. (Ref 77631).