It also is fairly greasy/dirty but this should affect usability. See photos below for more details on physical condition. We wired the compressor up to test it out. It started up and ran and built pressure.
The compressor seems to be operating properly, but we did notice that it had quite a bit of blowby. We were able to operate it and had it build up to 150psi at which the blow-off valve opened up. This unit does not have a controller.
I believe the tank is about 80 gallon, but didn't measure it. The item "Gardner-Denver 3HP Two-Stage Air Compressor 3-Ph 230/460V Aftercooler" is in sale since Thursday, January 28, 2021.
This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Air Compressors & Blowers\Other Air Compressors". The seller is "qsauctions" and is located in Christiansburg, Virginia. This item can be shipped to United States.