1925 OHMS stationery envelope adressed to Canada and bearing strikes of cds NO 16 (type CDS4), Official handstamp "THE CASTLE" 16 NOV (in a format not recorded by Hibbert - a combination of sans-serif and serif capitals in a single lined outer oval), in violet and the boxed OFFICIAL PAID handstamp (type OFF5). Attractive cover illustrative of these scarce postmarks. F-VF.
