Brass faceplate could use a good polishing. Only very minor nicks and scratches that would best be called imperfections. One chassis screw is missing.
5V4G is a green label Sylvania. 12AU7 and 12AT7 are Tung Sol from late 1950s. I used this for a while about 4 years ago.
I tested it for sale and it powered right on and sounds good. It is all original so I would recommend having the large electrolytics checked out before putting it into regular use. The item "Fisher Model 80-AZ Mono Block Amplifier Super Clean with pair Mullard EL37 tubes" is in sale since Tuesday, November 9, 2021. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "prima5star" and is located in Vallecito, California. This item can be shipped to United States.