Printed catalogues are our primary medium for offering early instruments. We have uploaded our latest issues, Tesseract Catalogues 108, 109, 110, and 111, presenting many unusual early objects of science and medicine


Rittenhouse, The Journal of the American Scientific Instrument Enterprise is dedicated to articles about the history of instruments made, sold, and/or used in the Americas.We co-published this as a print journal for 23 years. All 70 back issues, featuring many dozens of articles on all types of scientific instruments, are still available from us, either singly or by volume.



The History of Science Museum, in Oxford, England has an active presence on the web, featuring exhibits, publications, and the interactive discussion site "rete".



PARIS: The long-running Paris Map Fair has expanded its coverage to include early scientific instruments as well as globes and maps. The next fair is scheduled for Saturday 6 November 2021, at the Hotel Ambassador. Admission is free. Full details on their web site: