Nitto Technomic Stem, Tall, 26.0 Clamp
Here is a traditional quill stem that lets you get you handlebars way up high. It's great for folks with stiff backs and for city bikes. As with all Nitto products, the workmanship and finish are first rate.
About 240mm in overall height (or 16cm above the minimum insert line), 26mm clamp, and a standard 22.2mm quill diameter. Stem length is center to center.