1964 HIGH VALUE PACKET SERVICE/£1 CASTLE ISSUE. Linen parcel tag (slight creasing) sent registered mail with red "HVP" label and Wildings 3d, pair of 1/6d and £1 Castle (corner fault) from London to "BANK OF SCOTLAND...EDINBURGH" cancelled "REGISTERED/ 22 APR 64/LOMBARD STREET" oval datestamps with "BANK OF SCOTLAND" receivers datestamp same date. Very scarce commercial usage of the £1 Castle. (Ref 77664).
