Item consists of a colour illustration of five types of titmouse eggs (including coal tit, great tit and blue tit), with caption: "Genus Parus. 1 Parus major. Great Titmouse. 2 Parus palustris. Marsh Titmouse. 3 Parus caudalus. Long-tailed Titmouse. 4 Parus ater. Cole Titmouse. 5 Parus caeruleus. Blue Titmouse."