Scope note: This class comprises distributions of form, tone and colour that may be found on surfaces such as photos, paintings, prints and sculptures or directly on electronic media. The degree to which variations in the distribution of form and colour affect the identity of an instance of E38 Image depends on a given purpose. The original painting of the Mona Lisa in the Louvre may be said to bear the same instance of E38 Image as reproductions in the form of transparencies, postcards, posters or T-shirts, even though they may differ in size and carrier and may vary in tone and colour. The images in a "spot the difference" competition are not the same with respect to their context, however similar they may at first appear. Examples: - the front side of all 20 Swiss Frs notes - the image depicted on all reproductions of the Mona Lisa In First Order Logic: E38(x) ⊃ E36(x)