Item Description

Portfolio one contains the following:

* 4 stamp block The Continental Congress, marked July 4th 1974 Philadelphia
* The Articles of Confederation, stamp with no visible postmark
* Rural America, Chautauqua New York August 6th 1974
* Rural America, Hillsboro Kansas August 16th 1974
* Harriet Tubman Black Heritage Washington DC February 1st 1978
* Christmas at Valley Forge, Valley Forge Pennsylvania October 21st 1977
* Energy Conservation, Detroit Michigan September 23rd 1974
* The Legend of Sleepy Hollow, North Tarrytown New York October 10th 1974
* Retarded Children Can Be Helped, Arlington Texas October 12th 1974
* Christmas 1974 New York New York December 26th 1974
* Christmas Dove Peace On Earth, New York New York November 15th 1974
* Benjamin West, Swarthmore Pennsylvania February 10th 1975

Portfolio two contains the following:

* 4 stamp block Continental Army American Military Services Washington DC July 4th 1975
* Apollo Soyuz Mission, Kennedy Space Center Florida July 15th 1975
* Apollo Soyuz Mission, Soviet Union postmark July 15th 1975
* International Women's Year, Seneca Falls New York August 26th 1975
* 4 stamp block 200th Anniversary of the Postal Service, Philadelphia Pennsylvania September 3rd 1975
* DW Griffith Movie Maker, Beverly Hills California May 27th 1975
* Battle of Bunker Hill, Charlestown Massachusetts June 17th 1975
* World Peace Through Law, Washington DC September 29th 1975
* Banking and Commerce, New York New York October 6th 1975
* 3 stamp block Spirit of 76, Pasadena California January 1 1976
* Flags of the United States, flags of each of the 50 states Washington DC February 23rd 1976

Portfolio three contains the following:

* The Jupiter Pioneers, Mountain View California February 28th 1975
* Collective Bargaining, Out Of Conflict...Accord, Washington DC March 13th 1975
* Sybil Ludington, Contributors To The Cause, Heroine Of The American War For Independence, Carmel New York March 25th 1975
* Salem poor, Contributors To The Cause, Gallant Soldier, Cambridge Massachusetts March 25th 1975
* Haym Salomon, Contributors To The Cause, Financial Hero, Chicago Illinois March 25th 1975
* Peter Francisco, Contributors To The Cause, Fighter Extraordinary, Greensboro North Carolina March 25th 1975
* Mariner 10, Venus Mercury Mission, Pasadena California April 4th 1975
* Lexington and Concord, first Battles of the American Revolutionary War, two identical stamps one postmarked Lexington Massachusetts the other one postmarked Concord Massachusetts, April 19th 1975
* Paul Laurence Dunbar, American poet, Dayton Ohio May 1st 1975
* Centennial of Sound Recording, Thomas Edison, Washington DC March 23rd 1977
* 4 stamp block, Pueblo Indian Pottery, Santa Fe New Mexico April 13th 1977
* Lindbergh Atlantic Crossing ,Roosevelt Field Station New York May 20th 1977
* Colorado the Centennial state, Denver Colorado May 21st 1977
* 4 stamp block Butterflies, Indianapolis Indiana June 8th 1977
* Spanish Pioneers in California, First Civil Settlement Alta California 1777, San Jose California September 9th 1977

Each stamp and cover is protected by a vinyl sleeve and as followed by several pages of information and illustrations commemorating the event