Our always-insightful contributor sends the following note and a sketch of the concept: “Sometimes a casting or forging will have a surface detail such as the counter A. (See Sketches I and II.) But, ...

Stama’s MT Technology delivers true mill-turn operations with a series of machines built on vertical machining center foundations. What this means is that main vertical spindles run all tooling, both ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This key ring and fob were owned by ...