The Lexington Concord Commemoratives were the first of many commemoratives issued to honor the 150th anniversary of  events that surrounded America's War of Independence. Many of these commemoratives are what we now call the "2¢ reds". 

Strangely, not all the stamps in this set honor the famous Battle (or rather series of skirmishes) at Lexington and Concord. The one cent stamp depicts Washington assuming command of the American troops at Cambridge a full two months after the skirmishes. This is even more amazing in the fact that the skirmishes were immediately preceded by one of the most famous events in American history, namely the "midnight" ride of Paul Revere from Boston to Lexington and Concord. A congressman from Cambridge, Massachusetts convinced the Post Office Department  that there was a link between Washington assuming command in Cambridge and the Lexington Concord "battle". Most would agree that a stamp depicting the ride of Paul Revere would have been more appropriate, but politics prevailed.

The two cent  and five cent stamps honored both Lexington and Concord; the two cent the actual battle at Lexington and the five cent the "Minute Man" statue at Concord.

All three stamps were placed on sale at the Philatelic Agency in Washington, D.C. and five Massachusetts cities that were an integral part of the Lexington Concord story: Lexington and Concord of course, as well as Boston, Cambridge, and Concord Junction. First Day covers are known from all six cities. The 5¢ stamp has a line over head variety listed in Scott.

9,104,983 issued
First Day: May 18, 1925

1,900,983 issued
First Day: May 18, 1925

The Norse American commemoratives were a departure from other commemoratives of the time in two respects. They were printed in two colors, which in essence nearly doubled the time needed to print them, and they were printed in sheets of 100 stamps (10 x 10), rather than in sheets of 200 or even 400, again a more time intensive method of production. On the other hand, none of the stamps had straight edges and the two colored design created some of the more striking stamps of the early 20th century. The slow production limited the number of stamps produced, to the extent that the Norse American issue has the distinction of having the smallest quantity issued of any commemorative series ever issued by the U.S. These stamps were particularly popular in the upper Midwest, particularly western Wisconsin and Minnesota, where there were large populations of Norwegian descent. The limited quantities available led to grumbling, and that along with the high cost of production, left a legacy that discouraged the future production of bi-colored stamps and to some extent issues publicizing current events. In this case they promoted the Norse American Centennial in St. Paul, Minnesota which began on June 8 of 1925.

The two cent stamp was issued to meet the regular mail rate and the five cent stamp to cover most foreign mail, including letters to Norway. The illustration on the two cent stamp is an artist's rendition of what the ship "Restaurationen" probably looked like based on a drawing of its sister ship. In 1825, the Restaurationen was the first ship to bring Norwegian immigrants to America. 

The design on the five cent stamp is from a photograph of an exact size replica of an ancient Viking ship that sailed from Norway to Chicago in time for the Columbian Exposition of 1893. So faithful were the engravers to the photograph from which the stamp's design was made, that a flag of the United States is seen waving from the bow of the ship!

A great deal of care was taken to ensure the quality of the stamps in this set. Most copies are very well-centered and, as mentioned, there were no straight edges. Although many cities asked for the privilege of issuing the stamps on the First Day, only six cities were chosen. The stamps were issued May 18, 1925 at the Philatelic Agency in Washington, D.C., Decorah and Algona, Iowa and Minneapolis, St. Paul, and Benson, Minnesota.

In 1925, the postal rate for special delivery on parcels weighing between 2 and 10 lbs. was raised from 10¢ to 15¢  and for parcels weighing over 10 lbs. from 15¢ to 20¢. In a rush to get the new fifteen cent stamp to Post Offices, it was decided to simply alter the denomination and color of the existing stamp, the 10¢ stamp of 1922. Since the twenty cent rate could be met using two of the existing ten cent stamps, it was felt there was enough time to create a new design for the twenty cent rate before its issue, hence the new design with mail truck. 

Both stamps were First Day issued only at the Philatelic Agency in Washington, D.C., but First Day Covers were already beginning to become popular in 1925 and these covers are not particularly scarce. The fifteen cent stamp has a double transfer variety listed in Scott.

On April 15, 1925, the third class mail rate was increased from 1¢ to 1½¢, creating a need for a fractional value postage due stamp. The ½¢ postage due stamp was created to meet this need. It was given the same design as other postage dues of the period, merely changing the denomination. Collecting the ½¢ postage due from the recipient was another matter, there was no half cent coin to purchase this stamp and pay the fee. Often the carrier would give the recipient a ½¢ Hale stamp in exchange for a penny, thus meeting the amount due.

Do you ever really take the time to think about why a particular stamp may have been issued? The Scott catalog explains the use of this stamp in the following manner: "The Postal Service Act, approved February 28, 1925, provided for a special handling stamp of the 25-cent denomination for use on fourth-class mail matter, which would secure for such mail the expeditious handling accorded to mail matter of the first class."

This hardly tells the whole story of this interesting stamp, lost in the back of the book and hidden behind its Parcel Post and Special Delivery brethren. Scott uses the letter "Q" to designate Parcel Post stamps and "E" to designate Special Delivery stamps and thus "QE" for the Special Handling stamps. Perhaps the letter "E" is somewhat misleading. In a sense, the Special Handling stamp is a "special delivery" handling fee for parcels. However, the "special delivery" was special only in the sense that a parcel with this fee paid was accorded first class status - not the Special Delivery status that was given correspondence and parcels with normal Special Delivery stamps attached. Thus a parcel with the Special Handling fee paid would be delivered with the same speed and at the same delivery hours as a normal first class letter.  Initially, this 25¢ fee was required for certain fourth-class parcels in addition to the normal Special Delivery fee, if expedited service was required above normal delivery. After July 1, 1928, the special handling fee was no longer required in addition to the special delivery fee, that is, if the special delivery fee was paid, the special handling fee was no longer required.

When the Special Handling stamp was authorized, some of the parcel matter contained live animals, such as  baby chicks, queen bees and, these were specifically mentioned by the Post Office, baby alligators. If the packages were delivered with the same speed as normal parcel matter, the animals would perish. For this reason, special handling of certain parcels was not an option  and collecting this extra fee helped to defray some of the added expense. Although the special handling fee was required for such fragile cargo, the Special Handling stamp itself was not required, it was issued to indicate that the added fee had been paid and to emphasize the new service. Although the last Special Handling stamps were printed in 1955, the fee is still required today for "unusual items that need to be handled specially ..." see USPS Special Handling for more.

The 25¢ Special Handling stamps were never printed using the "dry" method. The dark green 25¢ stamps are the early printings, listed in Scott as "QE4".  The chronology of the Special Handling stamps is first the 25¢ dark green stamp (1925), then the yellow green 25¢ (print run of 6 days,  Jan. 14-19, 1928). followed by the 10¢, 15¢, and 20¢ stamp wet printings (June,1928), and finally the dry printings of the  10¢, 15¢, and 20¢ stamps (1955). For a fuller discussion of this, see the 1928 page.

This first special handling stamp, QE4, has a very collectible variety, in which the "A" and second "T" of "STATES" are joined, and an even more collectible variety in which both the "A" and "T" of "STATES" are joined and the "T" and "A" of "POSTAGE" are joined. Scott does not distinguish the scarcity of this second variety, but there is an interesting article, by Robert G. Rufe, on these "relief breaks" in the Oct. 2007 and Oct. 2008 issues of the United States Specialist, in which the second variety is described as being more than thirty times scarcer than the first.