Grades to leather are given by either the manufacturer OR the store that is selling it. If the manufacturer has applied a grading system, they are using the numbers/letters to tell you either a) what type of leather was used or b) how the leather was finished or a combination of the two.
Vienna, VA. Vienna is a town in Fairfax County, Virginia, United States. As of the 2010 United States Census, it had a population of 15,687. Significantly more people live in zip codes with the Vienna postal addresses (22180, 22181, and 22182) bordered approximately by Interstate 66 on the south, Interstate 495 on the east, Route 7 to the north, and Hunter Mill road.
Satellite view showing Richmond, capital city of the State of Virginia in the United States. The city is located in the east-central part of the state in the Piedmont region of Virginia at the head of navigation of the James River, about 100 mi (175 km) south of Washington D.C..