Following an approach by Andy Mabbett, Carl Zeiss Microscopy GmbH have kindly open-licensed a number of images, with the promise of more to come. They include modern and vintage Zeiss microscopes, as well as portraits of people associated with Zeiss, educational posters, and more. One has already been declared a "featured image" on Commons. The images are in Commons:Category:Images donated by Carl Zeiss Microscopy; statistics are also available. Please add these images to Wikipedia pages and other projects!
1847 "Praepariermikroskop" First simple microscope for Trichinella detection by Carl Zeiss Jena
Correlative Microscopy System Shuttle & Find
Microscope Objectives by ZEISS
1924 Binocular compound microscope - a featured image
In January 2015 I was allowed to take pictures in Museum Wallraf, Cologne from the art exbition "Die Kathedrale. Romantik – Impressionismus – Moderne". Due to various reasons I was not able to upload them to Wikimedia Commons before December 2015. Now they are here: c:Category:Die Kathedrale. Romantik – Impressionismus – Moderne.
Prepare Coding da Vinci data for Wikimedia Commons
Through the art and cultural heritage hackathon Coding da Vinci many media files came under free license (more info) . Uploading them to Wikimedia Commons including their metadata is possible by using tools such as Vicuña and the GLAM Wiki toolset. In the end of November a dozen of volunteers gathered together at a specially designed workshop hosted by Deutsche Nationalbibliothek and Wikimedia Deutschland eager to learn how to apply the tools. We all learned it is not that easy. At least some programming skills are needed. Collaborating with the open source community is quite useful. We published a learning pattern on how to use the upload tools. This year we aim to have more workshops.