Labelling and/or marking machine

A labeling or marking machine comprising:

• a feed conveyor rotatable about a vertical axis and equipped peripherally with a plurality of pedestals supporting single containers;
• drive means associated respectively with the conveyor, by which the containers are directed along a predetermined conveying path, and with the single pedestals in such a way that each pedestal is driven in rotation about a respective vertical axis;
• applicator or marker means occupying positions along the predetermined conveying path;
• and
• means by which to detect and control an angular position of the containers, the means by which to detect and control comprising a plurality of charge coupled device (“CCD”) image sensors mounted rigidly to the rotating feed conveyor, each associated with a relative pedestal supporting a container and each capable of detecting and recognizing predetermined outlines presented by the containers.