Silver SK-326 appeared on the market in the mid-1970s. It is a standard-gauge knitting machine, with 200 needles, 4.5 mm apart.

Silver SK326 accepts punchcards to create patterns by mechanically selecting needles according to the holes in these punchcards. Note that this model (unlike its earlier counterparts with just one lever) has two levers on the pattern panel: one to release the punchcard so it advances when the machine knits patterns and is passed back and forth and another to expand the pattern vertically by a factor of two. 

Except for the color, Silver SK326 is identical to Studio mod. 326. Thus, read the corresponding article with all its pros and cons.

Silver (also later known as Silver Reed, Studio, and Singer) manufactured several similar models of knitting machines with punch-card-reading capabilities without (e.g., SK311, SK312, SK313, SK315, SK321) and with built-in knit-leader (e.g., SK322, SK325, SK327, SK328, SK330, to name a few).