Koenig & Bauer AG (; FWB: SKB) is a German company that makes printing presses based in Würzburg.

[citation needed] Founded in 1817, by the 20th century Koenig and Bauer had become a major company and the world's leading manufacturer of security printing equipment.

In 1951, the firm began to suffer from the age of the designs of the machines it was selling, some of which dated from the early 1920s, and its chairman, Hans Bolza, faced up to the need to come to terms with Gualtiero Giori, an Italian printer and inventor with a company in Lausanne who had made great advances in intaglio printing.

Bolza established an immediate rapport with Giori, and the deal they signed in 1952 led to a long-term agreement in 1958.

The table includes those designs which were constructed by the pair in England before the establishment of their company upon their return to Germany.