Word Zapper Cartridges version a)* R ©1982, black label, Made in Taiwan, light blue Vidtec, CART: square cartridge, 1 line on bottom of notches, notches get thinner towards top version b)* R ©1982, black label, Made in Taiwan, dark blue Vidtec, CART: square cartridge, 1 line on bottom of notches, notches get thinner towards top version c)* C ©1982, black label, Made in Taiwan, dark blue Vidtec, CART: square cartridge, 3 lines on bottom of notches, notches remain same thickness from bottom to top NOTE: versions b & c have the same main and end labels, but the cartridge itself is different |