1920/21: Tercentenary Issue, the superb mint set of nine values all overprinted "Specimen" reading up in black or red, fresh and fine, large part og Gi = £ 375.
1921: Tercentenary second issue, the set of nine values, mostly marginal mint, all overprinted "Specimen" reading up in black, fresh and fine, large part og Gi = £ 325.
1922/34: "Ship Type", wmk. Script Ca, the fresh mint set of twelve values (exc. the 1½ d., but with additional ½ d, 1 d., and 2½ d. values), all overprinted "Specimen" in black, large part og. A scarce set Gi = £ 550.
1924: Keyplate 2 s. purple & bright blue on pale blue, 2 s. 6 d. black & carmine on pale blue and 10 s. green & red on emerald and 12 s. 6 d. grey & orange, fresh mint examples, all overprinted "Specimen" in black or red or perforated "Specimen" (12 s. 6 d.), rare and fine, large part og Gi = £ 500.
1930 (March): Keyplate 2 s. 6 d. grey black & pale orange-vermilion on grey blue paper, a fresh and fine mint example of excellent vivid colour, large part og. Cert Brandon (1985) Gi = £ 2'750.