Studio 305, standard, basic/manual
Studio mod. 810, standard, basic/manual
Studio 310, standard, needle selector
Studio 312, standard, punchcards
Studio 313, standard, punchcards
Studio 315, standard, punchcards
Studio 321, standard, punchcards
Studio mod.326, standard, punchcards
Studio mod.360K, standard, punchcards
Studio SK-121, bulky, manual