500Kwacha 2001 glatter Rand

Hallo,ich finde diese Münze/Medaille im Netz nur mit 

geriffelten Rand,aber meine hat einen glatten Rand und wiegt 15.19gr.

Gibt es zwei verschiedene Ausgaben?

Difficult to know, since SCWC says plain, the km276 doesn't seem to exist, although described, but not shown,  here:

https://numismaster.com/?id=1615549

No help for your question, but the description in catalog seems wrong: berlin wall was built 7 years after 1954, ‘wall’ is showing visitors in a stadium.