Common on the frontier these are the main go to close quarter combat weapon that Humans and Nobles usually go for. D's Longsword while special in it's appearance and such is also common out on the Frontier every bid as much as other long swords to acquire. General Gaskell's long black blade is gigantic like the man and very unique.
Bierce is in the habit of leaving his left hand resting lightly on the hilt of his long sword. One didn't need to see that his blade was longer and heavier than those used for self defense to know that he was a combat professional.