Can allow viewers to view exhibits This two works, German？？？

[L ChinasStempelkollektor]

Hello,

US 2016 World Stamp Exhibition Thematic category winning score,

In the philatelic exhibits online., Can allow viewers to view exhibits
This two works, German:

Pigeons-Great diversity in the wild-Domesticated and admired by man
König, Lutz Germany

Mathematics, a science between theory and application
Maas, Joachim Germany

thank you very much

[L ChinasStempelkollektor]

Hello,
In a large exhibition, only a relatively short time (usually 3-5 days), a limited number of visitors can see it, especially large-scale exhibitions in foreign countries.

In China, we agreed that Germany is a strong country thematic philately， is our role model!

2019 world exhibition held in China, we welcome the thematic philatelists from Germany to China, to attend! ! !

In China, a philatelic magazine (2016, 6) published a Chinese author in US 2016 World Stamp Exhibition,
Thematic philatelists from Germany, help, review these Chinese authors, and works