this one is made in east turkmenistan, normaly there arabic script is used but also there is a sizeable amount of chinese molsems who adopt the centralasian costume and customs to a degree so they carry the ughir knife as well
there are made in "factories" with make hand workers,, and have been made like this for several 100 years
current producer
http://y.yaltapan.com/en/Mahsulat/Index.asp