This simple round platter or tray has the beloved trio of tulips in the center, which was the most popular pattern from the Rodney Kent line of hammered aluminum from the 1930s through 1950s.  It also has the cut rim that has mini-scallops, another hallmark of Rodney Kent.  The model number 421 is stamped on the back along with the Rodney Kent logo (check out the knight in armour).  The finish has  little tiny dots if you look closely, which may be oxidation or something.  I didn't see any dents.  The back has some discoloration.  The simplicity of the style makes it fit with a variety of decors and it can be used in multiple ways.