1. Water pump with perpetual motion Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: unknown Date: 1661 or 1662 Format: Image Agent: unknown
2. Horse-powered mill Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: unknown Date: 1661 or 1662 Format: Image Author: Bˆckler, Georg Andreas