An MBA is a Masters of Business Administration which is a Masters Degree which is graduate school. Undergraduate is a Bachelors Degree (4 years of college) or an Associates Degree (2 years of college). Some schools have Masters Degree programs that are like 4+1 (5 years) that are a bit accelerated.
In 1847, the United States Post Office Department printed its first stamps, a 5-cent stamp picturing Benjamin Franklin and a 10-cent stamp picturing George Washington.
Issued by the U.S. Postal Department on June 8, 1959, this mint stamp commemorated the 100th anniversary of the discovery of the Comstock Lode. The resulting mining operation produced about 300 million dollars in silver in its first 20 years. The stamp features Henry Comstock with a horse and miners.