If you click the black 'Amphibians Name' by mouse, its amphibian postage stamps will be showed.
Refference
"Standard color pictorial 19 Animal Vol.I" written by Ichirou Hayashi, issued by Hoikusya Co., in 1980.
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If you click the black 'Amphibians Name' by mouse, its amphibian postage stamps will be showed. 
to HomePage