Pictured is an accidental performance by some bear cubs that once lived at the Clinch Park Zoo in Traverse City, MI. This is in past tense both because the bears likely died of old age long ago, but also because the zoo closed September 6, 2010, victim of budget cuts and the outdated and restricted habitats available to the animals. It had been in operation for over 75 years.

These three young entertainers were probably drinking milk or some similar formulation, and the fact they all reared up at the same moment upon receiving their meal made for the memorable photo.
This postcard was mailed and postmarked, the date being June 19, 1939, so the picture dates from the 1930’s.