#1019 Washington Territory first day cover by Knoble. The edges are creased and the flap is tucked a..
$7.00
#1020 Louisiana Purchase first day cover by Knoble. This cover is toned. Postmark State: MO City: St..
$9.00
#1021 Opening of Japan first day cover by Knoble. This cover is toned and Knoble address is stamped ..
$9.00
#1022 American Bar Association first day cover by Knoble. This cover is toned. Postmark State: MA Ci..
$10.00
#1023 Sagamore Hill first day cover by Knoble. The cover is toned. Postmark State: NY City: Oyster..
$9.00
#1026 General George Patton first day cover by Knoble. The right edge is creased and the cover is to..
$9.00
#1027 New York City first day cover by Knoble. This cover is toned. Postmark State: NY City: New Yor..
$9.00
#1028 Gadsden Purchase first day cover by Knoble. There is a spot on the upper edge of the cachet a..
$9.00
#1029 Columbia University first day cover by Knoble. This cover is toned. Postmark State: NY City: N..
$9.00
#1029 Columbia University first day cover by Knoble. This cover is toned and the lower left corner i..
$9.00
#1030 Benjamin Franklin first day cover by Knoble. The cover is toned. Postmark State: DC City: Wa..
$9.00
#1031 George Washington first day cover by Knoble. The cover is toned. Postmark State: IL City: Ch..
$9.00
#1032 Mount Vernon first day cover by Knoble. The cover is toned. Postmark State: VA City: Mount V..
$9.00
#1033 Thomas Jefferson first day cover by Knoble. This cover is toned. And the flap is tucked and se..
$9.00
#1035 Statue of Liberty first day cover by Knoble. The edges are creased and there is erased addres..
$8.00
#1038 James Monroe first day cover by Knoble. There is creasing along the seam below the postmark a..
$9.00
#1040 Woodrow Wilson first day cover by Knoble. There is a mark in the lower center and a spot on t..
$9.00
#1044 Independence Hall first day cover by Knoble. The upper and lower centers are creased and the ..
$9.00
#1054 George Washington first day cover by Knoble. The cover is toned. Postmark State: MD City: Ba..
$9.00
#1055 Thomas Jefferson first day cover by Knoble. The cover is toned. Postmark State: MO City: St...
$9.00
#1061 Kansas Territory first day cover by Knoble. The upper left edge is creased and the flap is tu..
$9.00
#1062 George Eastman first day cover by Knoble. This cover is toned and the flap is tucked and parti..
$9.00
#1064 Pennsylvania Academy of the Fine Arts first day cover by Knoble. This cover is toned. Postmark..
$9.00
#1065 Land Grant Colleges first day cover by Knoble. This cover is toned. Postmark State: MI City: E..
$9.00
#1066 Rotary International first day cover by Knoble. The edges and upper right corner are creased ..
$8.00
#1067 Armed Forces Reserve first day cover by Knoble. The lower center is creased and the cover is t..
$9.00
#1069 Soo Locks first day cover by Knoble. The upper edge of the postmark circle is creased and the..
$9.00
#1070 Atoms For Peace first day cover by Knoble. The cover is toned. Postmark State: DC City: Wash..
$9.00
#1072 Andrew W. Mellon first day cover by Knoble. This cover is toned. Postmark State: DC City: Wash..
$9.00
#1074 Booker T. Washington first day cover by Knoble. This cover is toned. Postmark State: VA City: ..
$9.00
#1076 FIPEX first day cover by Knoble. This cover is toned. Postmark State: NY City: New York Year: ..
$9.00
#1077 Wild Turkey - Wildlife Conservation first day cover by Knoble. The lower edge is creased and t..
$9.00
#1078 Pronghorn Antelope - Wildlife Conservation first day cover by Knoble. The upper right edge is ..
$9.00
#1082 Labor Day first day cover by Knoble. Postmark State: NJ City: Camden Year: 1956 Month: 9 Day: ..
$9.00
#1084 Devils Tower first day cover by Knoble. This cover is toned. Postmark State: WY City: Devils T..
$9.00
#1086 Alexander Hamilton first day cover by Knoble. This cover is toned. Postmark State: NY City: Ne..
$9.00
#1087 Polio - March of Dimes first day cover by Knoble. This cover is toned. Postmark State: DC City..
$9.00
#1088 Coast and Geodetic Survey first day cover by Knoble. The lower left corner and upper right ed..
$8.00
#1089 American Institute of Architects first day cover by Knoble. This cover is toned. Postmark Stat..
$9.00
#2697j Allies in North Africa - World War II : 1942 Into the Battle first day cover by Knoble. The ..
$15.00
#C47 Powered Flight first day cover by Knoble. This cover is toned. Postmark State: OH City: Dayton ..
$9.00
#E20 Letter - Special Delivery first day cover by Knoble. The edges are creased and there is address..
$17.50
#FA1 Mailman - Certified Mail first day cover by Knoble. The corners are creased and the cover is t..
$10.00