Large Green Sack

About 2g 0s on Beta · Alliance (1 hour ago), 2g 0s on Beta · Horde (7 hours ago), and 1g 90s on Beta · Horde (1 day ago), from player scans. A vendor pays 25s 0c, so the auction house pays 7.6× 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 90s there, against 25s 0c at a vendor.