"The Private Ship Letter Stamps of the World", Vol. 1-4,Ringstrom & Tester "The Caribbean" including price guide, Ringstrom & Tester "Australia-Europe-South America", Humieres, Ringstrom & Tester "The Suez Canal Company" with reprint sheet,  Connell "The Letter and Parcel Stamps of the Finnish Shipping Companies", each hardbound with dustjacket, almost as new