TONGA (1984) Zebra shark. Full sheet of specimens with center gutter showing progressive proof colors. Scott No 568, Yvert No 567.
AVAILABLE AT $50
TONGA (1990) Porites (coral). Trial color imperforate plate proofs in marginal block of 4. Usually only one sheet of 40 of these proofs was printed. Scott No 756, Yvert No 786. Rare!
AVAILABLE AT $30
TONGA (1990) White-spotted hermit crab. Full sheet of imperforate proofs with center gutter showing progressive proof colors. Scott No 802, Yvert No 862.
AVAILABLE AT $80
TONGA (1991) Rowing Festival. Set of 5 overprinted SPECIMEN. Scott Nos 778-82, Yvert Nos 832-6.
AVAILABLE AT $30