This chart is based upon both major and minor catalog numbers. The default opening view shows all US stamps; you can filter the chart by using the drop down box to select stamps by ‘Type’.
Catalog Number Description Denomination Color Date Issued Perforation Num Produced Series
2561 District of Columbia Bicentennial 29c multi. 9/7/1991 11 149M
2562 Comedians: Laurel  and  Hardy 29c multi. 8/29/1991 11
2563 Comedians: Bergen  and  McCarthy 29c multi. 8/29/1991 11
2564 Comedians: Jack Benny 29c multi. 8/29/1991 11
2565 Comedians: Fanny Brice 29c multi. 8/29/1991 11
2566 Comedians: Abbott  and  Costello 29c multi. 8/29/1991 11
2566a Comedians 5x29c multi. 8/29/1991 11 700M
2566c American Comedians 29c multi. 8/29/1991 11
2567 Jan E. Matzeliger 29c multi. 9/15/1991 11 149M Black Heritage
2568 Space Exploration: Mercury Mariner 10 29c multi. 10/1/1991 11
2569 Space Exploration: Venus Mariner 2 29c multi. 10/1/1991 11
2570 Space Exploration: Earth Landsat 29c multi. 10/1/1991 11
2571 Space Exploration: Moon Lunar Orbiter 29c multi. 10/1/1991 11
2572 Space Exploration: Mars Viking Orbiter 29c multi. 10/1/1991 11
2573 Space Exploration: Jupiter Pioneer 11 29c multi. 10/1/1991 11
2574 Space Exploration: Saturn Voyager 2 29c multi. 10/1/1991 11
2575 Space Exploration: Uranus Voyager 2 29c multi. 10/1/1991 11
2576 Space Exploration: Neptune Voyager 2 29c multi. 10/1/1991 11
2577 Space Exploration: Pluto Not Yet Explored 29c multi. 10/1/1991 11
2577a Space Exploration 10x29c multi 10/1/1991 11 334M