Trimmed black full helms (in-game Black full helm (t)) may be obtained as rewards from level 1 Treasure Trails. They cannot be made by players. This helm requires level 25 Defence to equip. Many players buy it for its unique design.
Armour cannot be trimmed by players. Anyone offering to do so should be reported for Item Scamming.
On 1 July2008, the plume was changed from grey to red. Some players were outraged as it made it look like a Zamorak full helm, only black. This update caused the price of the helm to increase drastically.
On 19 August2008, the plume changed back from red to grey. This outraged some players because some people wore the helmet with a red plume to look like a black knight.