Printed catalogues are our primary medium for offering early instruments. We have uploaded our latest issues, Tesseract Catalogues 102, 103, 104 (a special issue on sundials), and 105, 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 Museum of the History of Science in Oxford has an active presence on the web, featuring exhibits, publications, and the interactive discussion site "rete".



BURES-SUR-YVETTE: On Sunday, 15 October 2017, several dozen dealers in early scientific instruments will offer their wares at this "Bricasciences" fair, held indoors at the Gymnase Chabrat in this village 30 km southwest of Paris. Admission is free, open from 9am until 6pm.

LONDON: The next of these semiannual antique instrument fairs will be held on Sunday 22 October 2017. Several dozen international dealers will present their wares at the DoubleTree by Hilton, near Victoria Station. Opening hours are 10am until 3pm, with general admission 5 pounds. Details here.

PARIS: The long-running Paris Map Fair is expanding its coverage to include early scientific instruments as well as globes and maps. This year's fair will be on Saturday 4 November 2017, from 11am until 6pm, at the Hotel Ambassador. Admission is free. Full details on their web site: