C    PicSil2    ©1983, CART1
   U    PicSil2    ©1983, CART2
x R    PicSil2    ©1983, CART2, EL: “p” printed on right, PAL
x R    PicGr2    ©1985, CART2
   R    PicGr2    ©1985, CART3
x R    PicGr2    ©1986, CART2
   R    PicGr2    ©1986, CART3
x R    PicGr2    ©1987, CART3, ML: no “use with…”, ML: EL: plastic
x R    PicGr2    ©1987, CART3, ML: “use with…”, ML: EL: plastic
   R    Picred2    ©1983, CART3, Hong Kong, ML: “CX2692P”, EL: CA400225-092 on lower right
x R    Picred2    ©1983, CART3, China, ML: “CX2692P”, EL: CA400225-092 on lower right