They have an apartment that they rent out to a tenant. The tenant's grandfather recently passed away, and he received a box full of vintage items.
My uncle bought the records that were in the box from him. It is not known who signed the album, but it has not been faked, for sure.
You can look at the records signatures from the images attached.
My uncle does not have a turntable, so he couldn't try to play them. I do have, i can test them for you and even record a video of them playing if you'd like me to do so, but since they are from the early 60s, keep in mind that they won't sound the best:)

Let me ask him how much he wants for them:)