ANP Model 1931 protective mask

Very nice late 1931 model protective mask with cover and accessories. Carry bag in strong green canvas, late manufacture by A.S.T.. Strap with metal hooks and abdominal strap. Bag dated 1940. Two side pockets with a single metal decontamination tube, original green paint. Rubberized canvas mask with all its straps and eyepieces. Manufacturer's mask dated 1940, TO marking for ordinary size, the mask has retained its flexibility. Rubber tube present but hardens with metal screw tips. Filter dated 1939 Beautiful set lightly used in perfect condition 1935/40