CALIFORNIA ORIGINAL USA POTTERY serving platter or tray.  Marked on bottom "Cal. Orig. U.S.A. 730."  This gorgeous tray only had one small chip that we had a very tough time finding.  It is very large at ~ 15 inches long and 9.5 inches wide.  It has three compartments for three different appetizers, dips, etc.  We do not know manufacture date, but would guess it is early 1970s art deco, but it could well date back to the 1960s.  s/h fee of $10.99 includes careful packing.