Note:
(a) The attribution at the end of this report is "苗子/凝炼（德新社等）." Heed "等," because the DPA report (in English) was published on Apr 18, 2018.
(b) Karl Marx Banknote. Trier Tourismus und Marketing GmbH, undated. https://www.trier-info.de/englis ... mp;shop_item_id=143
It is € 3 for EACH bank note that has no intrinsic value (ie, can not buy a thing).
(c)
(ii Trier https://en.wikipedia.org/wiki/Trier
(formerly known in English as Treves, French is still Trèves; on the banks of the [river] Moselle (thus in Moselle valley); "Founded by the Celts in the late-4th century BC as Treuorum * * * members of the Celtic tribe of the Treveri [tribe name] settled [here];" Population (2015-12-31): 114,914;
(ii) demographics of Germany https://en.wikipedia.org/wiki/Demographics_of_Germany
(According to the first census since reunification, Germany's population was 82,175,700 (31 December 2015)
There is no need to read the rest of this Wiki page.