ANTIQUE VINTAGE COPPER HOT WATER BOTTLE Branded WENDY 13 high diameter approx 23 Wendy" copper water bottles are vintage or antique English hot water bottles, often designed as bed warmers with a rounded shape and a distinct screw cap , featuring a patina that reflects its age and history. Originally used as hot water bottles or bed warmers, they are now primarily collected for rustic or vintage home decor. Material: Made of copper Period: Often date back to the late Victorian or early 20th-century era (1850–1900s).