Vintage Stamp

United States 2c revenue stamp of 1930

Source: wikimedia | scanned September 2005 by User:Stan Shebs

Ernest Just

 Ernest Everett Just (August 14, 1883 – October 27, 1941) was a pioneering African American biologist,
academic and science writer. Just's primary legacy is his recognition of the fundamental role of the cell surface in the development of organisms.

 Source: vintage black photos | tumblr
( restlessandcr8ive)