Vintage Mickey Mouse Nightlight Plug In

Pre-owned, in tested and working, but old. Plastic. A bit of paint missing in spots - nose and edges of ears, eyes, a few spots on back of head that I can't clean off. 1960's. Approximately 2"W x 2.5"H. No on/off switch - just plug in. I am not sure if it can be opened so bulb can be replaced. See photos.