George is right on the value. Original retail was $7500/pair, they were the top of the CJ lineup, HP (of TAS fame) had a pair in his reference system for a while. Great amps, 200wpc. Conradjohnson.com has some info, in their 'classic products' section. They can supply manual, etc. if need be. They were made between 1981-1985 I think. Great amps that hold their own with anything today, when tuned up right. Not many big power amps at this level, esp. using such a musical tube as the EL-34.
enjoy,
-Ed
enjoy,
-Ed