1837 Two stampless covers from New York to Wohlen, Switzerland via France, from the Isler correspondence, one by ship "Burgundy", the other by the "Carroll", both bearing boxed "PAYS D'OUTREMER/PAR LE HAVRE" h/s and French "C.T.F." in red ('Colonies Transit France' based on the Basle (Aargau)-French postal contract), one with Le Havre transit datestamp, fine. (Image)

1840-62: Four stampless covers from/to the U.S.A. related to Austria including two covers (1840/1848) from Baltimore to Groeden, Tyrol, an 1850 cover from New York to Vienna, and 1862 cover addressed to a Captain of an Austrian clipper c/o Austrian Consul in New York, re-directed to Gloucester, England. All with repsective datestamps, postmarks, ship names etc. (Image)