It appears to have a unique sound effect when sheathing and unsheathing. I've not found a single other dagger that has the same sound effect.

Can anyone tell me if there are any other daggers that have the same sound effect when sheathing and unsheathing?

Please don't tell any spoilers like 'Yes, when you kill blabla, you'll get his dagger.' Keep it simple, please!

Maybe the glass dagger sounds that way because it's as wide as a shovel.

I've seen a similar effect before with weapons in this game, but I can't remember which. I know it wasn't the glass dagger, because I only use daggers on the several early assassin characters I made, and never any other time else, especially not prissy elven ones.

Maybe it was the dragonbone blade.

I remember Dawnfang/Duskfang did in Oblivion.