Cast iron piggy banks, particularly those shaped like animals, gained significant popularity in the late 19th and early 20th centuries. These were often produced as durable and decorative items, intended to encourage saving in children while also serving as a charming addition to a home. Many were designed with intricate details, reflecting the manufacturing capabilities of the era.

The Hubley Manufacturing Company, mentioned in the search results, was a prominent American manufacturer of cast iron toys and doorstops from the late 1800s through the mid-1900s. Their animal figures, including cat banks, are highly sought after by collectors for their quality and historical significance. The design of these banks often featured a slot for coins and a removable base or plug for accessing the savings.