For those Interested in understanding the history of custody and "what is a euro bond/ dollar", I...

The Quick explainer for Eurobonds is this: 
 

Eurobonds were introduced to the financial markets in the early 1960s with the launch of internationally distributed and mainly US dollar-denominated bonds. Originating as an offshore market, and not subject to the exclusive regulation of one government or group of governments, Eurosecurities initially benefited from the exploitation of inefficiencies in individual domestic