A Good Head On Your Shoulders
Bring two Mithril Coifs and one Ornate Mithril Shoulder to Trenton Lighthammer.
Mithril Coif
Ornate Mithril ShoulderDescription
It seems as if master had this planned from the start. I was not taught to create the items which you learned to create and you were not taught the items which I learned to create.
The master is wise, <name>. We shall teach each other!
Show me how to make a mithril coif and ornate mithril shoulders and I shall show you how to create an ornate mithril helm.
Progress
Have you completed the crafting of the items, <name>?
Completion
Excellent! A fair tradeoff, if I do say so myself. Watch and learn, <name>!
Rewards
You will learn: 
Teach Ornate Mithril Helm