How much is a Chicago cottage pump organ serial?

The value of a Chicago cottage pump organ can vary widely based on its condition, age, and specific model. Generally, these organs can range in price from a few hundred to several thousand dollars. For a precise valuation, it's best to consult antique musical instrument dealers or online auction platforms that specialize in vintage instruments. Additionally, serial numbers can provide insight into the organ's production date and model, which can further help in determining its value.