Ironwood Maul

About 90s 0c on Beta · Horde (3 hours ago), 78s 0c on Beta · Alliance (3 hours ago), and 1g 0s on Beta · Alliance (7 hours ago), from player scans. A vendor pays 14s 8c, so the auction house pays 6.1× 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 85s 50c there, against 14s 8c at a vendor.