One of the most famous designers of toy soldiers ever was Roy Selwyn-Smith, who began developing his miniature masterpieces while working for the Zang Plastics Company in the 1940's. Their range of figures, first distributed by Britains then ultimately bought out by the larger company, became known as Herald Miniatures (identifiable by the medieval trumpeter on the base). But his very earliest creations were marketed as "Zang" and had an odd geometric logo underneath - or sometimes nothing at all
Here's a Zang guardsman standing next to one of Selwyn-Smith's later Herald guardsmen - the improvement in his skill is evident. Note that the early figure shows a grenadier wearing white webbing straps over his shoulders, so is more representative of a Victorian/Edwardian guardsman - they don't wear these any more