China PRC 2453-2456, MNH. Michel 2487-2490. Changbai Mountains, 1993. Tianchi, Alpine tundra, Waterfall, Mixed forest. Blocks of 4 - buy 4 sets. For domestic purchases up to $60.00 first class mail will be used; purchases above $60.00 require mail with tracking number (buyer pays the mail fee). For international purchases up to $60.00 first class international airmail will be used; purchases over $60.00 require mail with tracking number (registered mail, buyer pays the $23.00 or $26.00 for oversize item). Warning for the buyers from Eastern European countries, Russia, China, Middle East, South Asia, Latin America, Africa exclude RSA, and the buyers with eBay ID less 100: the purchases over $30.00 require expedited mail.