1 1/8 quill 0deg rise, 150mm Cook Bros stem. brand new, never used.
full spec here http://www.bikepro.com/arch_products/stems/a-cook.html
favourite quote of above site: "If you've given any study to any the writing in this book, you will know how rare outright praise is but this stem is just a pleasure to hold, the work is sterling, and the shape and esthetic design deserve the recognition of MOMA. Neither version of this stem is still made"
Â£140 including insured postage UK (tad more for overseas)