Pocket badge of 1° Régiment de Tirailleurs Algériens - 1st Algerian Tirailleurs, dating from c 1930.
Shows the Hand of Fatma at the top with a superimposed 1. Below a Islamic crescent. The motto in Arabic reads "First". Fastened with two stemless lugs. Made by Drago, Paris.
A unit of the French colonial army.
See this:
http://fr.wikipedia.org/wiki/1er_r%C...alg%C3%A9riens
And here is a great but pricey site for French badges.
http://www.i-m-l.com/
(This post replaces one that disappeared when I asked for it to be moved. Acknowledgements to Voltigeur for all the help!)