You can use this vintage glass bottle in many ways. For decoration, place it on a table or shelf to add a touch of old - world charm to your space. You can also fill it with flowers or small trinkets. When handling the bottle, be careful as it's made of glass and can break easily. To clean it, gently wash the outside with a mild soap and water. Avoid using abrasive cleaners that could scratch the glass. If you want to remove the inside residue, you can soak it in warm, soapy water for a while and then rinse thoroughly. Store the bottle in a safe place away from direct sunlight to prevent the color from fading.