sent by Josef Sebrle

sent by Holger Kaufhold

sent by Pinter Tibor

sent by Ahn Jung Min

sent by Leonhard Reith

sent by Leonardas Misiulis

sent by Peter Butler

sent by Dan Buhnea

sent by S. Markovic

souvenir sheet on cover is Serbian item of joint issue Bulgaria/Serbia celebrating ecology in Balkan mountains

sent by Yiang Jian

sent by Roman Sudzik

sent by Florian H. Tirk

sent by Henri DE MAN

sent by Harry Jannsohn

sent by Arnold Krenn

Arnold used Austrian souvenir sheet issued as joint issue AUSTRIA/JAPAN

sent by Fumiaki Koizumi

Both stamps are a part of a souvenir sheet - joint issue with Austria

sent by Bülent Oktem

sent by Mustafa Gulamali

sent by Galina Makhalina

Galina used souvenir sheet issued by Russia to celebrate International Polar Year

sent by Ivete dos Santos Carvalho

Brazilian stamps are joint issue with Korea

sent by Ivete dos Santos Carvalho

Ivete used stamps issued by Brazilian post office as joint issue with Hong-Kong

sent by Ivete dos Santos Carvalho