Abstract: A clamp for use as part of a pole-supported apparatus, such as a display system, permits one or more articles to be held in fastened engagement to a support pole for securement thereof at a selected position therealong in a facilitated manner. The clamp includes a collar portion which permits attachment to the support pole, and at least one article clamping portion which captively holds the article, and which is connected to the collar. The collar is open at both ends thereof, and is sized and shaped to receive the support pole therethrough in the longitudinal direction. The collar is divided substantially in half along a longitudinal axis thereof to form two halves connected by a hinge to one another, allowing the collar to be opened for lateral reception of the support pole. The collar is compressively locked about the support pole by tightening a screw extending through a flange disposed on one of the collar halves which is threadingly received adjacent the other half of the collar.