What exactly is that table?

Turns out, the 'sort the mail and stack the old papers table' in the main entry room is actually also a "pool table," also known in some parts as a billiards something or other.

Of all the advice anyone's given me about how to keep things in good shape, there is probably none that I've taken more seriously than the pool guys, who said "keep this thing covered whenever you are not using it."

So, it's been tightly under cover for months at a time, but I recently cleared it off and shot around, now that the drum set isn't quite as in the way...