From that photo it looks like the first generation, made in America, and in very good condition. I owned a black tweed from that era, but sold it after buying a second generation tweed to match my tweed C50's.
I have not checked prices lately, but around here all used Peavey moved for ~50% of original MAP, except for rarities like the C20 combo or those seller needs cash yesterday sales. Somewhere around $300 unless the uncertain tube market is impacting prices. Maybe a bit more since it looks so clean.
They are not a lot of fun to work on, due to the tri-fold PCB with the jumpers in between. Ensure it functions properly.