i.e., a little cow. A nickname given to a billon Liard, struck by the Vi- comtes de Bearn in the early part of the fifteenth century. The type was copied by Henri IV of France about 1608, on whose coins the field was quartered with two cows and two crowned letters H.
In the Inventory of the Chateau de Pan. 1561-1562, " Cinq vacquettes d'or de Beard " (? Bearn) are mentioned; but these were probably essays or trial-pieces, as the Vacquette was always of billon or base silver. See Baquette.
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)