Crit, knockback and fame values are from the game files, not tested in Classic World.
No mob is recorded dropping this yet. Seen it drop? Report the mob and it shows up here for everyone.
From store sales seen on launch week and prices players report here. Prices are mesos per unit. For store sales of gear, only copies known to be unscrolled count.
Median of the newest unscrolled sales (up to 10), from a summary of 35 sales seen over about the last week. The middle half of those sales were 2,133 to 2,399. No player reports in the last 30 days yet.
Processed Leather ×3
Stirge Wing ×15
Spool of Thread ×9