Thomond 1965 Helicopter 2s6d (Diamond shaped) with 'Sir Winston Churchill - In Memorium' overprint in gold unmounted mint block of 4, slight off-set from overprint on gummed side
Thomond 1965 Helicopter 2s6d (Diamond shaped) with 'Sir Winston Churchill - In Memorium' overprint in gold unmounted mint block of 4, slight off-set from overprint on gummed side