Heavy Quiver

About 1g 45s on Beta · Alliance (7 hours ago), 50s 0c on Beta · Horde (13 hours ago), and 50s 0c on Beta · Horde (1 day ago), from player scans. A vendor pays 5s 0c, so the auction house pays 27.6× more.

No. It is in Classic Era too, with the same item level, vendor price and stack size.

Sell it on the auction house. After the 5% cut a stack of 1 brings about 1g 37s there, against 5s 0c at a vendor.