Three unnamed blue engines appeared in various magazine stories and other books. Contents 1 The Tender Engine 1.1 Technical Details 1.1.1 Basis 1.2 Livery 1.3 Appearances 1.3.1 Magazines 1.4 Trivia 1.5 Gallery 2 The Lost Tank Engine 2.1 Biography 2.2 Technical Details 2.2.1 Basis 2.3 Livery 2.4 Appearances 2.4.1 Books 2.5 Gallery 3 The Poster Engine 3.1 Technical Details 3.1.1 Basis 3.2 Livery 3.3 Appearances 3.3.1 Magazines 3.4 Gallery The Tender Engine