It's a rare amp, and odds are there is a buyer out there. But without any solid sales history, just like anything it's worth whatever somebody is willing to pay. Anything anybody would throw out is just a guess. One sold on eBay in July 2015 for $535, one with cream tolex that was listed for $1295 on Reverb sold in Oct. 2015 - but who knows what they settled on.
What would you take for it? We don't do blind bidding here; if you want to sell it here, figure out what you would take for it and put it in the classified section with that price on it.
Or put it on eBay and you'll find out "what it's worth" in the open market.