That's def a Control Deck test cart judging by the program. There's a couple reasons why it has just a sticker label, the original case could have been damaged, or it was just a extra board that they put in a standard case and put a sticker on it. Board matches exactly to my control deck cart, so appears to be legit.
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Looking for Black cartridge Color Dreams games, last 3 I need: Metal Fighter, Moon Ranger, Baby Boomer. Please contact me if you have any of these!