Is my ceramic "baking dish" oven safe?

I have a Primitives By Kathy Word Expressions "BAKING 9x13 DISH". On the bottom as well as their website, it says "High quality ceramic, dishwasher, microwave oven safe". I noticed that on each peice it says microwave oven safe (no comma between microwave and oven). Does that mean "microwave oven" or "oven" safe??? I have been online searching all night to find out. It is a beautiful and expensive 9x13 "baking" dish....heavy....Just stunned by the "microwave oven"