From Dungeons of Dredmor Wiki

Ammunition

1 

On hit, invokes Weak Poison Cloud.

These bolts are perfect for the adventurer of supple morals. It has one (1) bottle of vile poison attached to the business end which, upon impact, shatters and sends poisonous shards of eco-friendly low-phosphorous glass flying willy-nilly and hither-thither.

Worth 200 zorkmids. B:326 S:126 B:414 S:86 B:486 S:46

[edit] Crafting

It can be crafted with the following recipe: