Mithril Short Spear, and Fine Mithril Short Spear: each have 2 tricking options instead of 3.
Mithril Short Spear is mising the Blade 1 from Fine Mithril Short Spear
and
Fine Mithril Short Spear is missing the Blade 1 from Mithril Short Spear
Only 2 hilts are offered for each, but really can't tell if there's a difference between any of them anyways.