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.
The United States Postal Service introduced the Forever Stamp in April 2007. According to the USPS, these are non-denominated stamps because you can use them to mail letters weighing one ounce or less, regardless of the current postal rate. You can also use the forever stamp for international mail.