This is an attenuated speaker, so it's much quieter than other speakers, allowing you to crank your tube amp and get natural overdrive at reasonable volumes. I had it in a Marshall JTM45 Bluesbreaker, and could turn it all the way up without going over 100db.
Used for a while to get it broken in but never abused or overplayed. Exterior condition is great, it works, and it sounds awesome.
$80 or trade for pedals. Fulltone OCD, Soul Bender, tape delays, or multiple Boss - SD1, BD2. I'd also take partial trade + cash.