has a surface 23 for receiving the object 2 the surface 23 is of essentially the same extent as the object 2 to be received thereon a locking means not shown for securing the object 2 is arranged at the surface 23 this locking means can of an arbitrary kind but for automatic production it is preferable to use sub atmospheric pressure in this securing of the object the holder 22 is pivotable relative to the base 21 as will be described in more detail with reference to fig3 a 3 b in the embodiment according to fig3 a 3 b the base 21 comprises a vertical supporting plate 24 and a female portion in the form of a projection 25 which is sleeve shaped and thus defines a cavity 26 the holder 22 comprises a base plate 27 which on one side defines the surface 23 and on its other side has a male portion in the form of a projecting shaft 28 which is arranged coaxially with the receiving surface 23 the distal end of the shaft 28 is inserted into the cavity 26 and forms together therewith a closed compartment 29 both the shaft 28 and the cavity 26 are circular in cross section a seal in the form of an o ring 30 is arranged in a circumferential groove 31 at the mouth area 32 of the cavity 26 the o ring 30 rests against the circumferential surface of the shaft 28 to seal the compartment 29 against the ambient air the compartment.