In general, piedfort or piefort simply means that a coin is twice as thick as the "normal" version while the design and the composition are the same. The Royal Mint (UK) for example issues such pieces An essai is a pattern with a design that may well be different from the design of the regular coin. As for piedfort pieces from Indochina, have a look at this page:
http://art-hanoi.com/collection/wik...itle=Piefort
Christian
http://art-hanoi.com/collection/wik...itle=Piefort
Christian



















