1894, registered cover from New York to Belgium, 5¢ UPU rate + 8¢ registry fee, New York and Brussels backstamps, Fine to Very Fine, a colorful Columbian usage. Scott 221, 232, U348. Est. $60-80 (Image)

Est. $60-80

1880, cover from New York to Chile, with 3-color franking folded over the top edge to act as a seal. Note the Panama transit cancel on front (no backstamps), nearly Fine, a scarce destination in this period. Est. $60-80 (Image)

Est. $60-80

1883, cover from Salt Lake City, Utah Territory to England, Fine to Very Fine, a rare territorial usage with lovely 3-color franking, Ex-Ainsworth. Scott 182, 184, 186. Est. $150-200 (Image)

Est. $150-200

1891, well-traveled short paid cover from Mass. to England, forwarded to France and Switzerland, with a plethora of transit cancels and postage dues of France and Switzerland, Fine, a scarce 3-country usage. Scott 220. Est. $75-100 (Image)

Est. $75-100

1896, cover to a ship, forwarded to England and then returned, Fine. Est. $30-40 (Image)

Est. $30-40

1901, cover from Minnesota to Helsinki, Finland (then a part of Russia), with R.P.O. cancel and New York 25 centimes due postmark (double rate, short paid?), New York and Helsinki backstamps, Fine to Very Fine. Scott 268, U363. Est. $40-60 (Image)

Est. $40-60

c. 1870, cover from Marblehead, Mass. to Berlin, Germany, 7¢ postage for the NGU rate via England, a lovely usage, Fine, Ex-Knapp, Andromeda. Scott 146, 147. Est. $75-100 (Image)

Est. $75-100