All of these manga in this lot are black and white, read from right to left and are in English.  

Mars 4 (very good condition, minor shelf wear, no creases on binding, pages slightly yellowed)

Mars 10 (very good condition, minor shelf wear, no creases on binding, pages slightly yellowed)

Mars 11 (very good condition, minor shelf wear, no creases on binding, pages slightly yellowed)

Mars 12 (very good condition, minor shelf wear, no creases on binding, pages slightly yellowed)