Vintage Kiln Craft Cat Singer Songwriter Mug Heavy Crazing

This is a vintage Kiln Craft coffee mug in good condition with no chips or cracks noted. There is however a uniform crazing over the entire surface of the mug both inside and out including the handle and bottom. It looks like the crazing was done in the when it came out of the kiln but I found no other examples. The mug is about 3.5 inches tall and around three inches wide. Please see images and ask any questions you may have. JCCB5