Thomond 1967 Jet Liner 2s (Diamond-shaped) with 'Sir Francis Chichester, Gypsy Moth 1967' overprint doubled, one inverted, unmounted mint but slight set-off on gummed side
Thomond 1967 Jet Liner 2s (Diamond-shaped) with 'Sir Francis Chichester, Gypsy Moth 1967' overprint doubled, one inverted, unmounted mint but slight set-off on gummed side