length: 22 9/16"
blade: 16 5/8"
blade width: 2" at base
grip and pommel: 5 1/2"
guard: 5"
point of balance: 3/4" from guard
weight (dagger): 1 lb 8.4 oz
weight (dagger & sheath): 1 lb 14.6 oz

"It's a dagger!" "It's a shortsword!" "It's a dagger!" "It's a shortsword!" "Dagger!" "Shortsword!" "Dagger!" "Shortsword!"

"Wait, you guys - the Coustille is both a dagger AND a shortsword!"

Actually, it's a really long dagger, long enough to be considered a shortsword. The name "coustille" came from the troops carrying these weapons. Ewart Oakeshott in (Archaeology of Weapons, page 253), says: ""From their use of this weapon, bodies of foot soldiers came to be called "Coustilliers", and even as early as the middle of the twelfth century the term was applied in an entirely derogatory sense to bands of brigands". Popularized by common footsoldiers, used by brigands - there's no reason why nobles couldn't carry a long back-up weapon, too.

"Good, bad, I'm the guy with the dagger."