Help to identify

Hi all

I have a coin on the one side is stamped 2/- and the reverse is C.D.M. It has a ring of dots all the way around the sides on both sides. That's all that is on the coin.
Any ideas?

Hello and welcome to Numista. It sounds like a token of some sort, are you able to upload a photo or two?

Pure diamond

Yes that is one - that 2/6 token is part of a series, from Lüderitz in German South-west Africa.
Here are also the 2/- and 1/- versions, made of brass ...
https://www.numisbids.com/n.php?p=lot&sid=557&lot=2555
https://www.numisbids.com/n.php?p=lot&sid=557&lot=2554
Used around 1920 -1930 time.
https://en.wikipedia.org/wiki/Oranjemund
https://www.britannica.com/topic/Consolidated-Diamond-Mines-of-South-West-Africa-Ltd
It is in Namibia, and Consolidated Diamond Mines became Namdeb and
then part of DeBeers.

Welcome to the site, and I see you are in South Africa, so that is why you have the token!

Thank you so much.yes in south africa busy uploading my collection its gonna take a while!Thanx again

Oooh, a South African. A friend perhaps! Welcome.