This is the infamous longblade, a crude and heavy weapon used by the brute Hars, an orc subspecies that are less savage and more smart than the standart orc.
The longblade, aka. "Har sword" is called "Bfank" in their language, and a newly sharpened one can cut a horse in half with just one swing.
The blade format depends on the orc blacksmith. Some of them prefer a duble edge sword, while others like most to produce a single-edge cleaver-looking sword.
The ring on the grip is often used to "hang" the blade on a wall or armour, making it easy to carry.
Usually a longblade weights 15 to 30 kg, and most of times its made of dirty metal leagues, with lots of stain, dust, sand and other unpurities in the middle...
The Har orcs and the Longblades are from Scourge Campaign Setting, to be launched in 2010 (for True20)