Abstract: A self-inking stamp holder, said stamps comprising a box-like frame or case with openings on at least two opposite sides and a slide containing an overturnable stamping member and an inking pad, elastically sliding within said frame or case between the openings. The holder is formed by an upright and a plurality of main wings extending obliquely in a parallel relationship from at least one face thereof each wing being capable of holding a stamp. Retaining means are associated to each of the main wings for abutting on said frame or case, when held from a respective main wing, from the opposite side of the main wing. To firmly secure the stamp in position thereon.