This vintage cast iron piggy bank is a wonderful addition to any collection. With its charming design and sturdy construction, it’s sure to be a cherished piece for years to come. The bank features a battery coin compartment and is marked with the Book of Knowledge brand. Crafted from high-quality cast iron, this piggy bank is a beautiful piece that will add a touch of vintage charm to any room. The country or region of manufacture is unknown, but it’s clear that this bank has stood the test of time. Whether you’re a collector or just looking for a unique piece to display, this vintage piggy bank is sure to delight.