A highly collectible sixth plate thermoplastic case titled "The Calmady Children," crafted by die cast artist Hiram W. Hayden, based on the original oil painting by Sir Thomas Lawrence. The case features a beautifully detailed raised relief of two children, showcasing the artistry and precision typical of the mid-19th century. Inside, the case holds an ambrotype of a young boy standing beside a chair. On the chair is a thermoplastic case, possibly this very case. The photograph is delicately tinted, adding a touch of color to the child's cheeks and attire.