Medieval coins from the Main Market Square in Kalisz

Eight coins (seven medieval and one modern) were found during archaeological rescue excavation on the Main Market Square in Kalisz in 2012. Four coins (including one fragment) are hohlpfennigs, probably all of them are of Polish origin (from Greater Poland?) and date from the thirteenth-fourteenth century. The next three are: a halved penny, perhaps from the end of the thirteenth century, West Pomeranian penny and, probably, a Silesian heller from the fourteenth-fifteenth century. The modern coin is a heavily worn copper shilling by John Casimir (1648–1668).