I have this thing traveling to me. The seller does not seem to know what a Nimcha is. Sorry for the pictures, they are the sellers, but I do not know when I will get the time for doing better ones.
My idea for two days was how was possible an Algerian Nimcha could finish in a developing Colombia (Republica de Nueva Granada was its name between 1830 and 1858, with a couple of civil wars in between), where it became enroled and marked its state property.
Then I saw the Victorian machete with VR below and realized that it was the other way around, Nueva Granada ordered machetes from UK or Germany, with its name and date, and somehow, one of them became the blade of a Nimcha.
Then finally, I made the obvious search in google "Nueva Granada 1846 Nimcha" which unearthed a thread from this very forum dating from 2007, with a nimcha companion in it.
http://www.vikingsword.com/vb/showthread.php?t=4874
So, it was rather a batch of blades what landed in North Africa. Possibly the Novagranadians never paid for it and the maker found another buyer...
In a second thought, the Nimcha from 2007 has lost in comparison quite 1.5cm or more due possibly to sharpening, but the scabbard seems made for that breadth. Did it get a new scabbard sometime or was the blade like that when it became a Nimcha...