Shark shark shark

[Vidiot-bob]

I once owned a 2600 cart with a top label (shark shark shark). Dont remember the front label. I put it on ebay for $0.99 opening bid. I was contacted in under 20 minutes by a guy saying its rare and he would give me $300 cash. Of course I accepted. Never really found out any more info on that cart and if it was a demo or a 1 off item.