Instructions
Visit websites online such as Kovels that contain antiques price guides.
Check auction sites and antique shops for completed sales of antique oak ice boxes and make a note of how much they sold for.
Visit your local library and check the antiques price guides and reference books that are available.
Check the internet for websites that give the history of refrigeration. There may be ads or links to sites that have an antique oak ice box for sale.
Compare the size and condition of your ice box to the sizes and conditions of the ones you find listed. Determine an average price value for your ice box.