 As a proof of possible gaulish origins, a hoard was discovered in 1852 in Ledringhem.This treasure was estimated by Jérémie Landron (1840–1904), a pharmacist-chemist-"gold-and-silver assayer", to be composed of 35 000 small gold coins, described as staters, and locally known as Ledringhem's buttons ("boutons de Ledringhem").The coins were retrieved in an 18-liter vase, which has been lost, by two workers cleaning a farm cesspit of the Mormentyn farm.