Upon further inspection, it seems to be a music recording vessel. Otherwise, it would be known as a vinyl record. These things are ancient, as in, your grandmother probably used back in life 2 or 3, not now. You've only heard about them, not ever seen them in real life. You remember from those stories that you would have this machine that had a large orifice that would spew out the noise of the recording vessel. You thought your dad was old, but not this old.
You captchalogue the vessel until you can find something that can read the information written on the device.