This is an original Singer Employee Pin in Singer's trademark green and red colors.  This rare pin would attach to one's lapel, and at 3/4" in diameter, it is slightly larger in size than one of the standard . In such excellent condition, a rare find like this will be a darling addition to a Singer collection. 

This particular pin would have been given to a Singer employee in France, and it even says, 'Machines a Coudre Singer in the Red 'S' on the badge - translating to, 'Singer Sewing Machines'.