Used HP 15C scientific calculator in excellent working condition with a case.  Aluminum part of bezel has some scratches and case has considerable wear.  Photos are of the actual calculator being sold.  No manual included (PDF manual available on the Internet).  Batteries included to maintain memory, which includes three programs for fun, example and/or utility: (1) LBL A calculates auto mileage (MPG) at fill-ups from inputs of miles1, miles2, and gallons, (2) LBL D calculates the area of any plane triangle from inputs of the 3 sides, and (3) LBL E calculates the smaller great circle distance between any two locations on the surface of the earth from inputs of the co-ordinates of the two locations (earth considered a sphere of diameter 7,920 miles) and calculates the direction to begin travel from the first coordinate to the second.  Photo 1 shows the distance for lat1 = 30.4506°N, lon1 = 91.1544°W to lat2 = 15.1321°S, lon2 = 30.1156°E of 8594.4962 miles.  The angle to begin travel from location1 to location2 is 87.9937°CW from North ( not shown in a photo ).  Program listings and instructions for use included.