In 2006 the United States Postal Service issued two postage stamps as part of the Distinguished Americans series. Two of the most esteemed scientists in the world were the honorees on the stamps, Dr. Jonas Salk and Dr. Albert Sabin.
Dr. Jonas Salk is best known for creating the polio vaccine. Prior to the invention, Polio was [...]
|
||||||
|
|
||||||
|
Copyright © 2010 The Stamp Collectors Corner - All Rights Reserved |
||||||
Recent Comments