The invention describes an embossing stamp comprising at least a base unit in which a retaining device is disposed on one side to retain a die plate holder and an operating device is disposed on a further side. The operating device is constructed such that it directly or indirectly acts on the retaining device, wherein a pivot of the operating device is disposed in the base unit. The base unit and/or the operating device are modular in construction, wherein the side walls are at least partially formed by panels which are positioned with respect to each other and fastened via half-shells and/or connecting means.