This circus themed child's mug was originally part of a three piece set from the 1940's era.  Pink is known to be less common than blue as fewer were made. One side of the mug shows an elephant doing balancing tricks.  The second side shows a watchful soldier.  This mug has a definite hairline crack running from the top into the middle area.  Note the placement in the photo. No other flaws. Harker Pottery begain in Liverpool OH and closed in 1972 after over 130 years of business. Measures 3" tall x 4" diam.