letters USA & jet
United StatesColor: red & bl & blk
January 5, 1968Face value 20 Cent
50-star runway
United StatesColor: car
January 5, 1968Face value 10 Cent
50-star runway
United StatesColor: brtrd
January 5, 1968Face value 10 Cent
Thomas JeffersonUS
Thomas Jefferson
United States
January 12, 1968Face value 1 cents Commemorative issue Prominent Americans
U.S. Flag over White HouseUS
U.S. Flag over White House
United States
January 24, 1968Face value 6 Cent
Thomas PaineUS
Thomas Paine
United States
January 29, 1968Face value 40 cents Commemorative issue Prominent Americans
untaggedUS
untagged
United StatesColor: multi
February 12, 1968Face value 6 Cent
Stars&Stripes
United StatesColor: multi
February 12, 1968Face value 6 Cent
Ft McHenry flag
United StatesColor: multi
February 12, 1968Face value 6 Cent
Leif Erikson by A Stirling Calder
United StatesColor: multi
February 12, 1968Face value 6 Cent
map of Western Hemisphere with lines converging on Texas
United StatesColor: multi
February 12, 1968Face value 6 Cent
Chief Joseph by Cyrenius Hall
United StatesColor: multi
February 12, 1968Face value 6 Cent
Racing for Homesteads in Cherokee Strip 1893
United StatesColor: brn
February 12, 1968Face value 6 Cent
Farm buildings & fields of grainUS
Farm buildings & fields of grain
United States
February 12, 1968Face value 6 cents Commemorative issue Illinois statehood sesquicentennial
Marquette & Joliet
United StatesColor: multi
February 12, 1968Face value 6 Cent
Support our Youth
United StatesColor: red & bl
February 12, 1968Face value 6 Cent
John TrumbullUS
John Trumbull
United StatesColor: multi
February 12, 1968Face value 6 Cent
wood duck s
United StatesColor: multi
February 12, 1968Face value 6 Cent
farm landscape
United StatesColor: multi
February 12, 1968Face value 6 Cent
The 150th Anniversary of Illinois StatehoodUS
The 150th Anniversary of Illinois Statehood
United StatesColor: multicoloured
February 12, 1968Face value 6 Cent
eagle weathervaneUS
eagle weathervane
United StatesColor: multi
February 12, 1968Face value 6 Cent
Bennington flag
United StatesColor: multi
February 12, 1968Face value 6 Cent
Daniel Boone
United StatesColor: multi
February 12, 1968Face value 6 Cent
Franklin D. RooseveltUS
Franklin D. Roosevelt
United States
February 28, 1968Face value 6 Cent