Circular sock machines were manufactured in almost every country.  Virtually every nation held a patent.  

Most were produced between the early 1800s and 1980s.  Newer ones, such as the Harmony Auto Knitter ceased production in the late 1980s. 

Creelman Bros' Banner Machine
This Canadian machine was the Creelman Bros' finest.  Manufacured in the 1800s, a complete outfit included 36 & 40 slot ribbers and 60, 72 & 80 slot cylinders.  Cost was $100.00 back then...imagine that!
 

Wikuna
Believed to have been made in Holland, this Dutch machine resembles the English Imperia in design and workmanship.

Golden Fleece

Manufactured in England, the Golden Fleece closely resembles the Auto Knitter in design.  Parts were constructed of brass, iron and chrome.  A handy tabulator was built into the machine to assist with row counting.

Scottish Argyle Knitter
Little history is known about this rarity.  Purchased from a British tradesman, this machine was used to produce argyle stockings.  The ribber and cylinder outfits span from 36/72 to 54/108.

Home Profit Master Machine
Beauty and brass are combined in this spectacular machine.  A 36 slot ribber & 72 slot cylinder made this machine complete.  This American machine remains a gem amongst collectors.