#3178 – 1997 $3 Mars Pathfinder

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U.S. #3178
1997 $3 Mars Pathfinder

Issue Date: December 10, 1997
City: Pasadena, California
Quantity: 15,000,000
Printed By: Stamp Venturers
Printing Method: Photogravure
Perforations:
11.1
Color: multicolored
 
The Mars Pathfinder Priority Mail stamp was the last stamp issued in 1997. It commemorates the successful landing of the Mars Pathfinder on July 4, 1997. The stamp pictures the first image sent from the Pathfinder, the remote-controlled vehicle, Sojourner, which collected data about the soil and rocks, with the Mars landscape in the background.
 
The stamp is the largest the U.S. Postal Service has ever made for regular postage. (Newspaper and periodical stamps issued in 1865 were larger.) Special “USA” perforations were added to the bottom row of perfs. The vertical perfs extend beyond the stamp to the bottom of the selvage for easier removal of the stamp. Hidden words were incorporated into the design and are visible with a stamp decoder. They read “USPS” and “MARS PATHFINDER • JULY 4, 1997” in alternating lines.
 

Largest U.S. Postage Stamp

On December 10, 1997, the USPS issued its largest postage stamp, honoring the Mars Pathfinder.

NASA launched the Mars Pathfinder on December 4, 1996. The rover landed on Mars on July 4, 1997. Over the next few months, the rover moved across the Martian surface analyzing the planet’s atmosphere, climate, geology, and the composition of its rocks and soil. In all, it sent back 2.3 billion bits of data, 16,500 pictures, and took 8.5 million measurements. Pathfinder sent back its last data transmission on September 27, 1997.

To honor this achievement, the USPS planned a special stamp issue. Issued on December 10, 1997, the Mars Pathfinder Priority Mail stamp was the last stamp issued that year. The stamp pictures the first image sent from the Pathfinder, the remote-controlled vehicle, Sojourner, which collected data about the soil and rocks, with the Mars landscape in the background. The Mars Pathfinder’s robotic rover was named for Sojourner Truth, an abolitionist and women’s rights activist.

Measuring 3 inches across by 1.5 inches high, the Mars Pathfinder stamp is the largest U.S. postage stamp ever issued. (Newspaper and periodical stamps issued in 1865 were larger.)  In addition to being the largest U.S. postage stamp, the Mars Pathfinder stamp has several other interesting features.

The Pathfinder stamp has special “USA” perforations on the bottom row of perfs. And the vertical perfs extend beyond the stamp to the bottom of the selvage for easier removal of the stamp. Hidden words were incorporated into the design and are visible with a stamp decoder. They read “USPS” and “MARS PATHFINDER • JULY 4, 1997” in alternating lines.

And in case you were curious, the smallest U.S. postage stamp is #1734, the 1978 stamp picturing the Indian Head Penny. It was less than an inch wide!

 
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U.S. #3178
1997 $3 Mars Pathfinder

Issue Date: December 10, 1997
City: Pasadena, California
Quantity: 15,000,000
Printed By: Stamp Venturers
Printing Method: Photogravure
Perforations:
11.1
Color: multicolored
 
The Mars Pathfinder Priority Mail stamp was the last stamp issued in 1997. It commemorates the successful landing of the Mars Pathfinder on July 4, 1997. The stamp pictures the first image sent from the Pathfinder, the remote-controlled vehicle, Sojourner, which collected data about the soil and rocks, with the Mars landscape in the background.
 
The stamp is the largest the U.S. Postal Service has ever made for regular postage. (Newspaper and periodical stamps issued in 1865 were larger.) Special “USA” perforations were added to the bottom row of perfs. The vertical perfs extend beyond the stamp to the bottom of the selvage for easier removal of the stamp. Hidden words were incorporated into the design and are visible with a stamp decoder. They read “USPS” and “MARS PATHFINDER • JULY 4, 1997” in alternating lines.
 

Largest U.S. Postage Stamp

On December 10, 1997, the USPS issued its largest postage stamp, honoring the Mars Pathfinder.

NASA launched the Mars Pathfinder on December 4, 1996. The rover landed on Mars on July 4, 1997. Over the next few months, the rover moved across the Martian surface analyzing the planet’s atmosphere, climate, geology, and the composition of its rocks and soil. In all, it sent back 2.3 billion bits of data, 16,500 pictures, and took 8.5 million measurements. Pathfinder sent back its last data transmission on September 27, 1997.

To honor this achievement, the USPS planned a special stamp issue. Issued on December 10, 1997, the Mars Pathfinder Priority Mail stamp was the last stamp issued that year. The stamp pictures the first image sent from the Pathfinder, the remote-controlled vehicle, Sojourner, which collected data about the soil and rocks, with the Mars landscape in the background. The Mars Pathfinder’s robotic rover was named for Sojourner Truth, an abolitionist and women’s rights activist.

Measuring 3 inches across by 1.5 inches high, the Mars Pathfinder stamp is the largest U.S. postage stamp ever issued. (Newspaper and periodical stamps issued in 1865 were larger.)  In addition to being the largest U.S. postage stamp, the Mars Pathfinder stamp has several other interesting features.

The Pathfinder stamp has special “USA” perforations on the bottom row of perfs. And the vertical perfs extend beyond the stamp to the bottom of the selvage for easier removal of the stamp. Hidden words were incorporated into the design and are visible with a stamp decoder. They read “USPS” and “MARS PATHFINDER • JULY 4, 1997” in alternating lines.

And in case you were curious, the smallest U.S. postage stamp is #1734, the 1978 stamp picturing the Indian Head Penny. It was less than an inch wide!