Rough Bronze Cuirass

About 10s 0c on Beta · Alliance (28 minutes ago), 9s 0c on Beta · Horde (6 hours ago), and 10s 0c on Beta · Horde (1 day ago), from player scans. A vendor pays 7s 52c, so the auction house pays 1.3× 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 9s 50c there, against 7s 52c at a vendor.