Does the Assassin's Blade actually exist?

[Zuro Duskhair]

Does the Assassin's Blade listed in the d20PFSRD actually exist in a book? I purchased the Pathfinder Player Companion: Advanced Class Options where the listing states it came from, but it's not there.

http://www.d20pfsrd.com/magic-items/magic-weapons/specific-magic-weapons/as sassin-s-blade/

[TriOmegaZero]

d20PFSRD does not use the actually title of the item, as it is IP and against Paizo policy to publish on a for profit site.

You can find it under Daggermark Blade.

[Zuro Duskhair]

TriOmegaZero wrote:

d20PFSRD does not use the actually title of the item, as it is IP and against Paizo policy to publish on a for profit site.

You can find it under Daggermark Blade.

Thanks much!