A combination of a device for delivering a laboratory sample carrier from a stack of sample carriers, and an apparatus for marking a laboratory sample carrier that is arranged to travel through the apparatus vertically or inclined such that the carrier travels under the influence of gravity, the device comprising: means for retaining a stack of laboratory sample carriers; and an ejector mechanism comprising: a displaceable mechanism comprising a carrier support portion and a carrier transporting portion which are hingeably interconnected, the carrier transporting portion having a carrier accommodating region; displacement means (16, 17) for displacing the displaceable mechanism from a first carrier receiving position and configuration to a second carrier release position and configuration, the carrier transporting portion arranged to support the stack when the displaceable mechanism is in the first carrier receiving position and configuration, the displaceable mechanism arranged to move a lowermost carrier from the bottom of the stack in the carrier accommodating region as the displaceable mechanism is displaced from the first carrier receiving position and configuration, and the carrier support portion is arranged to support the stack when the displaceable mechanism is in the second carrier release position and configuration; and a carrier transporting portion support for supporting the carrier transporting portion when the displaceable mechanism is in the first carrier receiving position and configuration but does not support the carrier transporting portion when the displaceable mechanism is in the second carrier release position and configuration thereby allowing the carrier transporting portion to drop to a carrier release position to release any said carrier from the carrier accommodating region, the device being positioned to drop the released carrier into the apparatus for marking. means for retaining a stack of laboratory sample carriers; and an ejector mechanism comprising: a displaceable mechanism comprising a carrier support portion and a carrier transporting portion which are hingeably interconnected, the carrier transporting portion having a carrier accommodating region; displacement means (16, 17) for displacing the displaceable mechanism from a first carrier receiving position and configuration to a second carrier release position and configuration, the carrier transporting portion arranged to support the stack when the displaceable mechanism is in the first carrier receiving position and configuration, the displaceable mechanism arranged to move a lowermost carrier from the bottom of the stack in the carrier accommodating region as the displaceable mechanism is displaced from the first carrier receiving position and configuration, and the carrier support portion is arranged to support the stack when the displaceable mechanism is in the second carrier release position and configuration; and a carrier transporting portion support for supporting the carrier transporting portion when the displaceable mechanism is in the first carrier receiving position and configuration but does not support the carrier transporting portion when the displaceable mechanism is in the second carrier release position and configuration thereby allowing the carrier transporting portion to drop to a carrier release position to release any said carrier from the carrier accommodating region, the device being positioned to drop the released carrier into the apparatus for marking. a displaceable mechanism comprising a carrier support portion and a carrier transporting portion which are hingeably interconnected, the carrier transporting portion having a carrier accommodating region; displacement means (16, 17) for displacing the displaceable mechanism from a first carrier receiving position and configuration to a second carrier release position and configuration, the carrier transporting portion arranged to support the stack when the displaceable mechanism is in the first carrier receiving position and configuration, the displaceable mechanism arranged to move a lowermost carrier from the bottom of the stack in the carrier accommodating region as the displaceable mechanism is displaced from the first carrier receiving position and configuration, and the carrier support portion is arranged to support the stack when the displaceable mechanism is in the second carrier release position and configuration; and a carrier transporting portion support for supporting the carrier transporting portion when the displaceable mechanism is in the first carrier receiving position and configuration but does not support the carrier transporting portion when the displaceable mechanism is in the second carrier release position and configuration thereby allowing the carrier transporting portion to drop to a carrier release position to release any said carrier from the carrier accommodating region, the device being positioned to drop the released carrier into the apparatus for marking.