1957 Registered cover franked 1956 Sex Equality 10w imperf (8) on reverse & 1957 Ulmil Pavilion 40w green perf 10 (4), tied by '57 9 12' cds. To Poland (addressed in Russian) to Govt Ministry in Warsaw with official arrival h/s. SG N112 & 119 cat £24+. Mi 108B & 118 cat €72+ as loose stamps alone. Rarity as proper usage. (P) (Image1)

Estimate AU$800