关于联合国濒危物种系列邮票前20辑的发行概况,笔者曾在《集邮博览》2013年第1期专文做过介绍。近年来,该系列邮票虽仍按惯例分三地(纽约、日内瓦、维也纳)每年各发行一个四方连,但其色彩、边饰、排版均出现了若干变化。现在此——展示如下,与同好分享。第21辑(2013年10月10日发行)。纽约方连(图1)依次介绍了印度貘、獴美狐猴、扁头豹猫、指猴。日内瓦方连(图2)依次介绍了南非穿山甲、树熊猴、菲律宾眼镜猴、科摩罗 About the issue of the first 20 series of stamps of the United Nations Endangered Species, the author introduced the first issue of the “Philatelic Expo” in 2013. In recent years, although this series of stamps is still routinely distributed in three places (New York, Geneva and Vienna) each year with a quadripartite company, its color, edging and typography have seen some changes. Now - show below, share with you. The 21st series (October 10, 2013 issue). New York side even (Figure 1) followed by the introduction of Indian 貘, 獴 beauty lemurs, flat leopard cat, refers to the monkey. Geneva side with (Figure 2) followed by the introduction of South Africa pangolin, tree bears monkey, Philippine tarsier, Comoros