All original Audubon prints have value. For example, the original Havell Osprey shown here can sell for 150,000 to 180,000 dollars in excellent condition. However, there is no price list since each print differs from the other regarding condition and provenance. Guidance can be given based on auction and private sales. All prices listed for originals on the Internet or bricks and mortar stores should be considered asking prices. A word of caution - the presence of script at the bottom of the print saying that it was drawn from nature by Audubon, or engraved by Havell or Bowen, does not indicate originality, as reproductions also reproduce such script. The smallest of Audubon originals, the octavo birds and mammals can have a value of less than one hundred dollars to several thousand dollars, depending on the popularity of the image and condition of the print. Imperial mammals which measure about 21 x 28 inches are generally valued from about five hundred dollars to tens of thousands of dollars, again depending upon the popularity of the image and condition of the print. Audubon Havells rarely sell for less than one thousand dollars for smaller images but can sell for upwards of one hundred and fifty thousand for the larger images, again depending upon the popularity of the image and the condition of the prints.