coins and more: 2943) Wilhelm Schickard (1592–1635), Astronomer, Mathematician, Inventor, Federal Republic of Germany: "400th Anniversary of Wilhelm Schickard's calculator (1623-2023)": A €20 (Twenty Euro) Silver Proof Coin issued by the Munze
HNF - Wilhelm Schickard (1592-1635); Blaise Pascal (1623-1662)
Mechanical calculator - Wikipedia
400 years of Schickard's calculating machine - event of the Computer Museum | News | Sep 4, 2023 | University Library | University of Stuttgart
Wilhelm Schickard (1592 - 1635) - Biography - MacTutor History of Mathematics
3D illustration of a Mechanical Calculating Device, designed and created by the German Astronomer, Mathematician and Inventor Wilhelm Schickard Stock Photo - Alamy
Replica Of Schickards Calculating Clock Framed Print by Science Source - Fine Art America