Strong Fishing Pole

About 75s 0c on Beta · Alliance (8 hours ago), 90s 0c on Beta · Horde (14 hours ago), and 89s 0c on Beta · Horde (1 day ago), from player scans. A vendor pays 1s 80c, so the auction house pays 39.6× 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 71s 25c there, against 1s 80c at a vendor.