French A.R.S.

The French A.R.S. used a cloth facepiece with a metal inlet/outlet assembly.  It was issued to French soldiers during World War I.  This example  was made around 1917.

A.R.S. = l'Appareil Respiratoire Spécial = Special Respirator Device"

 

Similar masks in my collection:  German GM17, French A.R.S. - G.E.P., French A.N.P. T-31, French A.N.P. T-31 Artillery, French TC-38, French T.B.M. 35, Slovenian M33