#3189o – 1999 33c Medical imaging

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- Mint Stamp(s)
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Grading Guide

U.S. #3189o
1999 33¢ Medical Imaging
1970s Celebrate the Century Series

Issue Date: November 18, 1999
City: New York, New York
Quantity: 90,000,000
Printed By: Ashton-Potter
Printing Method: Offset Press
Perforations: 11.5 X 11.5
Color: multicolored
 
The eighth sheet of fifteen stamps in the Celebrate the Century Series features subjects from the years 1970-1979.
 
Godrey Hounsfield invented the Computed Tomography or CT scanner in 1972. With the help of a digital computer, a cross section of an image could be created. The original scan took hours to get the data and more than a day to reconstruct the image on the computer. For his invention, Hounsfield was awarded the Nobel Prize and was granted Knighthood in his home country of England.
 
MRI’s or Magnetic Resonance Imaging was researched in the 1970s, but clinical trials didn’t begin until 1980. The use of digital imaging has spread rapidly in recent years.
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U.S. #3189o
1999 33¢ Medical Imaging
1970s Celebrate the Century Series

Issue Date: November 18, 1999
City: New York, New York
Quantity: 90,000,000
Printed By: Ashton-Potter
Printing Method: Offset Press
Perforations: 11.5 X 11.5
Color: multicolored
 
The eighth sheet of fifteen stamps in the Celebrate the Century Series features subjects from the years 1970-1979.
 
Godrey Hounsfield invented the Computed Tomography or CT scanner in 1972. With the help of a digital computer, a cross section of an image could be created. The original scan took hours to get the data and more than a day to reconstruct the image on the computer. For his invention, Hounsfield was awarded the Nobel Prize and was granted Knighthood in his home country of England.
 
MRI’s or Magnetic Resonance Imaging was researched in the 1970s, but clinical trials didn’t begin until 1980. The use of digital imaging has spread rapidly in recent years.