You are looking at a gently used vintage yellow 

TUPPERWARE "FIX 'N' MIX"

large 26 cup mixing and storage bowl, complete with the frosted white / sheer lid seal.  Bowl is stock number is 274-1 and lid is 224-16.  These are in good overall condition with surface scuffs on the body and utensil marks inside from use and handling.  Great for making homemade bread, making and storing dishes like potato salad and more for picnics, and much more.