WW-Team Twenty Deutsche Mark Krug" from a limited series of 5,000 Beer Stein

"Zwanzig Deutsche Mark-Krug" 3. Krug der Erinnerungs-Glaskrugserie. It states that the holder of the certificate owns the mug with the number 00343. The series consists of mugs featuring 5 Mark, 10 Mark, 20 Mark, 50 Mark, 100 Mark, and 1000 Mark motifs.

eBay