Vintage Coca-Cola Land-line Light Up Phone *DOES NOT WORK*

Great collectible piece to get. Unfortunately I havent been able to make it work. Comes with plug and headset. I replaced the batteries and was still not able to get it to light up or make a sound. When opened up, the bulb didnt look burnt up, and wiring looks intact. So Im not sure what the issue may be. Feel free to ask questions.