"The Private Ship Letter Stamps of the Word", Part 1 - The Caribbean (S. Ringström & H.E. Tester), Part 2 - Australia - Europe - South Amerika (S. Ringström & H. E. Tester), Part 3 - The Suez Canal Company (Jean Boulad d'Humieres, S. Ringström & H.E Tester) sowie Part IV "The Letter- and Parcel-Stamps of the Finnish Shipping-Company (G.W. Connell), seltene Reihe in sehr guter Erhaltung, alles Hardcover.