Abstract: A tab extending from a panel is inserted into a channel through an opening in a vertically aligned bracket supported by a pole. The bracket includes a pair of plates positioned in spaced overlying relation and connected by a brace to form the channel between the plates. The panel is first moved in a vertical direction until an upper tab is inserted through a slot formed by a stop positioned in the channel at a predetermined distance from the brace. The upper tab guides a notch in the panel to receive the stop until the stop contacts the bottom of the notch. Thereafter the panel is rotated in the channel until a lower tab is aligned with a second slot formed by a second stop at the opposite end of the channel. The panel is further moved until the second tab is positioned in the second slot to guide a second notch in the panel to receive the second stop and securely retain the panel in the bracket channel.