This book was published as part of the Glass in MAS project, a multidisciplinary research project on the glass collection of the MAS collection Vleeshuis (Antwerp, Belgium). Never before has the collection of archaeological glass of the MAS Vleeshuis Collection in Antwerp been described and disclosed in its entirety. This hidden treasure is part of a valuable study collection on 20 centuries of glass production, a wealth of information that has remained underexposed. The archaeological part is presented for the first time in this extensive catalogue.