As you indicated,
buck-184.com does describe this knife. It is a 1984 or possibly an 1985 Buck-184 Buckmaster. You are welcome to use some of the text on that page in your ebay listing BUT ONLY if you are kind enough to include a link back to the website.
For more information on this knife or the Buck-184 in general, please see <a href="http://www.buck-184.com">Buck-184.com</a>.