cover 1940 (Jan.) envelope to Edinburgh, bearing 1938 1d. with SG.2 c.d.s. and showing a good strike of the "Passed Censor" handstamp in violet, and 1940 envelope to Edinburgh bearing 2½d. with SG.2 c.d.s. and with "Opened by Censor" label (Heijtz type a ) at left