British Trade Dollars as ornamental belt

Have you ever wondered how come there is a little hook attached to some of these silver coins ?

They are mostly for ornamental purpose.

In the land of Borneo Island, the traditional tribes there likes to use these big silver coins as belt. It is used in their traditional dance.

A fine example is like this:

Note of thanks to Mr BK Lau for use of this image.

In the example above, the hook is at the sides --> joined into a belt.

In the example below, the hook is attached at 12 o clock; this type is usually attached to a chain for use as pendent.

And... How about this piece:  An original nice pendent.

Special thanks to Mr Bk Lau (used with consent)
http://www.ebay.com.my/itm/British-Trade-Dollar-Pendant-/251288156020?pt=LH_DefaultDomain_207&hash=item3a81f0f774&_uhb=1#ht_500wt_1156