Sigil of Leveling

Sigils of Leveling were a per-character item and were required to increase the maximum level your character could achieve. Free To Play and Premium Account characters started with a level cap of 4. Since VIPs had their level caps set to 20, these sigils would not appear as a reward choice for them. This item was removed in update 3 as the developers decided it was not wise to limit free/premium players in this manner, and thus removed the level caps entirely for everyone.

Types of sigils
Turbine had a fire sale of sorts just before Module 3 where you could buy any of these levels for 10 Turbine Points.

Availability

 * Sigils could be purchased from within the DDO Store or found by completing quests within the appropriate range, as an end reward.
 * Since they were not physical items, they could not be traded or found in the Auction House.
 * Once you acquired the Sigil, you would be unable to acquire that particular sigil again.
 * A Copper Sigil would randomly appear as quest reward in Harbor and Marketplace quests, on any difficulty.
 * A Silver Sigil would randomly appear as quest reward in Houses quests, though drop rate is lower than a copper sigil.
 * A Gold Sigil would randomly appear as quest reward in Level 9 and higher quests.