SG 608var
Czechoslovakia - 1918 to 1959 (Unmounted Mint)

1950 - Philatelic Exhibition - Prague
Special block of four that was sold at 20K included entrance to exhibition
Only sold to subscribers of the Philatelic Bureau, one per applicant. RARE!
Listed in MICHEL footnoted in GIBBONS.
SG Cat £55

Price: £40.00