There's not a whole
lot that's special about this cartridge. It's Super
Mario Bros., but it isn't the legitimate Nintendo
Co., Ltd. release.

Even includes a product code: LB-35.
What might be a bit interesting about this pirate
is the information on the label. Many pirate labels
never even try to emulate a legitimate label. But
this one is somewhat convincing, aside from Family
Computer having been written in English. I'm
fascinated by the product code, because it makes me
curious what "LB" stands for; maybe the makers. And
the code is numbered "35," which might mean there
are at least 34 other pirated games made by the same
company.
This pirate came as a part of a lot from eBay and
wouldn't be worth but a couple of dollars.