http://ahoy.tk-jk.net/macslog/GermanWW1 ... rSMSE.html
(very bottom of the page)
some the coins were used later to make a medal6429 silver Mexican dollars were recovered from the German cruiser SMS Emden after she was sunk by the Sydney off Cocos Island on 9 November 1914.
but, where did Emden took the silver???
I could not find a stop in its cruises pre-war or wartime...