Zifir thank you very much.
92 cm overall is the max. length i have met too. I am familiar with that model (length between 85 to 92 cm),structure,scabbard and decoration) as they were the latest yataghan model produced in Turkey (late 19th c. to very early 20th). But about width, I have never met anything like this.
In yataghan class, a 5 cms wide chopping machine with a 1 cm back bone is something really unusual. I will wait for any challenger for some time before I apply to Guiness