Studio SK312 Cardmatic knitting machine was manufactured in the very late 1960s. It is a standard-gauge knitting machine with 200 needles, 4.5 mm apart. It accepts punchcards for automatic patterning and needle selection.

It is a clone of the Silver SK312 knitting machine; thus, read the corresponding and detailed blog post while enjoying scarce pictures of Studio SK312 I could find so far.