x C    PicSil1    ©1982, CART1
   U    PicGr1    ©1987, CART3, ML: no “use with…”, “Atari, Corp.”, “CX2640”
   R    PicGr1    ©1987, CART3, ML: no “use with…”, “Atari, Corp”, “2640”
   R    PicGr1    ©1988, CART3, ML: no “use with…”, “Atari, Corp.”
   R    PicGr1    ©1988, CART3, ML: no “use with…”, “Atari, Corporation