During the Victorian era, mirrors were commonly produced through a technique known as silvering, which involved the use of silver nitrate. In this process, artisans applied a mixture of silver nitrate and other chemicals—such as ammonia and sugar—to the back of a glass sheet. These ingredients caused a chemical reaction that reduced the silver ions to metallic silver, forming a thin, reflective layer on the glass surface. After the coating dried and was polished, the result was a bright, clear m

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