I have/use one that is similar.
Calumet made a CC-400 standard model, a CC-401 long focus model, and a CC-402 wide field model. My wide field model has a 13-inch rail and a 7 3/16 inch bellows. The Long focus has a 26-inch rail and a 22-inch bellows. Yours looks like the standard model which has a 20-inch rail and a 16-inch bellows. All three have rising and falling front, sliding front, and a center-axis swinging and tilting front movement. All three have a sliding rear and a center-axis swinging and tilting rear movement. None have rising and falling rear. All three have a revolving film back that allows easy change in orientation from landscape to portrait.
The 4x5 Calumet is heavy and well made.
Calumet has declared bankruptcy; therefore, do not expect support from the company.
A used case, like the one in your package, cost about $50.
Used film holders cost about $10 each.
The film back will accept a Calumet 6x7cm roll-film holder.
I cannot tell you anything about the lens because I cannot see it. However, if the lens is a dog, the price of the package is low enough that you can afford to toss the lens in the trash.
By the way, I notice that you posted your message in the medium format forum. For your information, 4x5 cameras are no longer considered medium format. They are now classified as large format.
Large Format by
Narsuitus, on Flickr