A supporting mount mounts a device to a post and is removably fixed to the post without being fastened thereto by any penetrating fastener. A front panel is at the front post face and has the device fixed thereto. A pair of opposing side panels are at respective side post faces. Each side panel has a lower lateral edge connecting to the front panel, an upper lateral portion distal from the front panel, and a hook at about the upper lateral portion. A connecting element at the back post face engages the hooks at the upper lateral portions of the side panels. The mount pivots into frictional contact with the back post face at the top portion of the connecting element and with the front post face at a bottom portion of the front panel.