Cover from Netherlands. Boar and Woodpecker stamp were part of different sheet that issued in 6-July-2004 to introduce the living animals in Veluwe Nature Park. Thank you, Paul.
Cover form Ukraine with "R". Affixed 4 different value definitive postage stamps. The letter N means USD0.5, but I don't know why. Maybe someone could tell me the answer. Thanks my friend.
What marvelous cover from Bulgaria. The 1 lev shows the Rufous-tailed Rock-thrush, Monticola saxatilis and the 0.6 lev shows the Eurasian Woodcock, Scolopax rusticola.
A letter to China and stamp missing when my friend received it.
A friend sent me this letter enclosed one letter (first picture) I sent him in 20-Jan-09. He told me the letter had missed stamp when he received it. Entire cover was in good condition without any damage. I just wondered why the stamp would be lost buring the delivery way. It's really interesting.