obvious spelling errors on carts

[DeV0]

Ok, i know of the pole position one and have many pirate carts with spelling errors.

 

I have an NTSC Joust cart, Joust text is in orange and the date is 1985, every bit the same as the silver cart on the rarity list except the date and the fact that it reads "1985 ATAR, CORP"

 

This is by all means a real atari cart, Does the ATAR thingy show up often?