Damp Diary Page (Day 4)

About 1s 0c on Beta · Horde (6 hours ago) and 1s 0c on Beta · Horde (23 hours ago), from player scans. A vendor pays 25c, so the auction house pays 3.8× 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 95c there, against 25c at a vendor.