Well if the colours are showing up truly on my monitor I'd say it's almost exactly the same as my Faber Castell Polychromos Braunocker, Brown Ochre #9201-182. It looks identical to me going by your picture. If not, there are several ochre's quite close to that, some yellower and some browner so if you have access to a store that sells Poly's, you could check those out.
Good luck! I couldn't imagine losing some of my favourite shades! If I could never see Dark Indigo or Dark sepia again, I'd be heartbroken