Vintage Blue Sponge Heart Shaped Muffin Pan Ceramic 6 Muffins, never used!

Lovely vintage ceramic blue sponge painted heart shaped muffin pan for 6 muffins or cupcakes. Great vintage condition: no chips or cracks. Very heavy. 12 x 11 x 2 inches. I received this as a wedding gift back in 1980 go figure! I just thought it was so beautiful. I never used it it’s been in storage. The bottom shows that it’s been sitting in a cupboard but it’s in beautiful confition!!