1917 DAMAGED MAIL BELFAST TO EDINBURGH WITH 'OFFICIALLY SECURED' LABELS. Envelope Belfast to Edinburgh, posted unpaid and cancelled BELFAST 29 JA 17 with '2D' charge mark and 2d postage due cancelled EDINBURGH 30 JA 17. On reverse envelope damaged and resealed by two 'G CROWN R' labels each tied BELFAST date stamp 29 JA 17. Apparently this type of label with printer's imprint is only known used in Northern Ireland. (Ref 94509).