Recently, I'm starting to get much interest on this type of large gamefowl: O-shamo. Similar to other type of large gamefowl such as Asil, Malay, Ga Noi, Thai, Brazilian, etc... O-shamo is one of the heaviest and tallest oriental gamefowl. A cock can stand 30+in and weight 10+ lbs. I should have some eggs in the incubator soon. Can't wait to hatch some of these :) Some info regarding about this type of breed: http://www.longtail-fowl.com/o_shamo.html
Breed Profile: Marans Chicken - Backyard Poultry
According to the American Poultry Association, the evolution of the Marans chicken is said to have begun as early as the 13th century.