Tongue with two large ulcers due to congenital syphilis

Watercolour drawing of the tongue of a boy, aged ten, showing two large deeply excavated ulcers with raised and rugged edges, due to congenital syphilis. The child had previously been in the Hospital with a similar condition of the tongue, which quite disappeared under treatment by iodide of potassium. Under this medicine the symptoms quickly disappeared for the second time.