Water-filled Glass Flask

Description
Glass is a fragile substance most often used by nobles and rich merchants for mirrors and windows. Alchemists also prize it for its ability to store volatile concoctions and their ability to observe reactions within the glass as they experiment. Experienced alchemists have hundreds of such flasks, filled with exotic materials from across the world. Less experienced alchemists are probably dead because they stored their concoctions in a less adequate container.

This flask is filled with water.