Being the hoarder than I am, I’ve had this old helm taking up space in my pack for some time. Eventually, I dumped it in my bank to deal with later. Well, later is now.
Custom to place the arms and armor on a fallen warrior’s cairn. Grandfather fell not far from here. Managed to retrieve his body, but I saw an ogre with his helm.
There is a drop off an Ogre in Morkul Descent, an underground orc complex home to a legendary forge. Once you loot it, it will appear in the miscellaneous section of your inventory and have the following description
An old helm with a maker's mark from Morkul Stronghold. It's too battered to wear, and the name etched within is too faded to read.