Yeah? It's commoner than the gray cart, and (between the colors)
the fifth-best-selling NES cart.There was also gold
Zelda II…again more common than gray, from what I can find, and eighth-best-selling.
edit: the effaced logo is of
Zelda II, not 1.
Could just be that they had a manufacturing/printing fault for that piece and they kept it for in-house use; note that the back's gray, instead.