Ship Mail. 1851, Entire wrapper of pre-philatelic unpaid letter, delivered by a steamship from Lisbon via London and Ostend, addressed to Parnu, Riga boxed transit and Parnu double circle receiver, mounted on page from the Dr. Casey Collection with detailed explanation of postal rate, mostly VF (Image)

Ship Mail. 1886, stationery envelope 7k blue, sent on June 25 from Kerch-Enikol (Crimea Peninsula) to Veisenshtein (now Estonia), posted onto steamship ''Kerch-Taganrog'' and then was handled by eight(!) different TPO, delivered to Veisenshtein on July 4, envelope was opened for display and all markings shown, mounted on page from the Dr. Casey Collection, mostly VF and very rare item (Image)