Item one: Lady Helena Carnegie (ed.), Catalogue of the collection of antique gems formed by James, Ninth Earl of Southesk, K.T., London, 1908, I, p. 194, no. N82.
Item one: the lizard was considered to be the talismanic guardian of the eyes and the protector against ophthalmia. For a similar example, cf. S. Michel, Magische Gemmen, München, 2001, p. 86, no. 92 and pp. 59-63, nos. 55-60 for item two.