Yes indeed shown in Elgoods book Arms and Armor of Arabia. Silver version on page 88, and also shows 2 ivory hilted ones on page 93.
Shape seems generally refered to as "Kurdish" but the Kurds are spread right across Iraq, Iran and parts of Turkey so would be hard to pin down the exact area or origin. This is certainly not of Omani origin.
Hielke, this book is available on ABEBOOKS.com if you are interested in getting a copy. A good reference book for those who collect Arabian stuff.
Regards Stuart
