Gold Coins

Gives gold to player.

Source
Maiev can find two worth each in The Broken Isles, chapter 2 of the Frozen Throne sentinels campaign, Terror of the Tides.

Maiev can find eighteen worth each in Wrath of the Betrayer, chapter 4 of that campaign.

Malfurion, Tyrande and Maiev can find eight worth each in Balancing the Scales, chapter 5 of that campaign.

Tyrande and Maiev can find four worth each in Shards of the Alliance, chapter 6 of that campaign.

Kael can find two worth each in Misconceptions, chapter 1 of the alliance campaign, Curse of the Blood Elves.

Kael and Lady Vashj can also find four worth each in A Dark Covenant, chapter 2 of that campaign.

Kael and Lady Vashj can also find three worth each in The Crossing, the secret level of that campaign.

Illidan, Kael, Lady Vashj and Akama can also find sixty worth each in Lord of Outland, chapter 6 of that campaign.