We present here the challenges involved in the study of a 4th century hoard discovered in 2011 in Saint-Germain-de-Varreville (Manche, France). Exceptionally preserved and offering an abundance and an impressive interlacing of circa 14500 coins, the Saint-Germain-de-Varreville hoard appears as a completely original field of study to broaden the scope of numismatists. Our perspective is deliberately open, combining numismatics, archaeology, archaeometry and digital humanities, in order to progress in the writing of a history that would be as attentive to monetary production as to hoarding practices.