This is a great vintage Sandra Boynton 12 ounce coffee mug featuring a front graphic of a tiny mouse anticipating a bite from a large wedge of swiss cheese.  The back of the mug says "The Big Cheese" and would be perfect for a boss or someone who thinks like one.  This is a pre-owned mug in clean lightly used condition of a classic Boynton design from 1978.  The mug was made by Recycled Paper Products which also created Boynton's greeting card designs which were at the forefront of the alternative cards commercial movement that began in the mid-1970s and were sold between 1973 and 2003.