On September 5, 1989, the Royal Mail of Great Britain issued a set of four stamps to commemorate..

This black & white photo portrait of physicist Albert Einstein is paired with an uncancelled..

This black & white photo print of Albert Einstein at the blackboard is paired with a 2005 fu..

On March 4, 1979, the USPS issued a stamp to honor world renowned physicist Albert Einstein..

Albert Einstein.... This black & white photo print of physicist Albert Einstein is paired wi..

This black & white photo print of Albert Einstein sticking out his tongue only goes to prove..

IN 1998 THE USPS ISSUED 15 STAMPS FOR PEOPLE AND EVENTS TO REPRESENT THE DECADE OF THE 1920'S.&n..

IN 1995, THE  USPS HONORED RENOWNED ANTHROPOLOGIST RUTH BENEDICT WITH A STAMP.  A PROF..

Gerty Cori....On March 6, 2008, the USPS issued a set of stamps honoring another set of fo..

IN 1988, THE ROYAL POST OF GREAT BRITAIN HONORED THE LINNEAN SOCIETY, THE WORLD'S OLDEST EX..

IN 1982, THE  ROYAL MAIL OF GREAT BRITAIN HONORED CHARLES DARWIN WITH FOUR STAMPS.&nbs..

ON SEPTEMBER 15, 1991, THE USPS ISSUED A STAMP TO HONOR JAN MATZELIGER, THE INVENTOR O..