Piefort Publique Deposited
or more properly, Piedfort, means literally any coin struck on an un- usually thick planchet as a trial piece or essay. The designation is applied chiefly to coins of Bohemia, the Low Countries, and France, where some of these pieces were undoubtedly used as current money. The Dickgroschen of Prague are so termed, and in the French series Pieforts of billon occur as early as the reign of Louis Vll (1137-1180), while those of silver and gold from the fourteenth to the seventeenth cen- tury are frequently met with.
- Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)