I tried looking it up in a couple of sites, and came up with not much.
As with all art pieces, the price is not set and it depends on a lot of things. Since the artist doesn't seem to have changed his positions drastically (became very successful, died, all art pieces aside the one you have destroyed ect.) it's probably worth just what you paid for it.
From what I saw online, his paintings sells for around 400$-500$. depend on topic, year and other specifics.
