These masks were typically made during the 1920’s and 1930’s, though this one has a marking of 3 11 41, and another marking NB 12 41, indicating this piece to be wartime. It comes complete with original box, and original sticker on the box too. The box has some staining on it, and also a significant tear on one side but outside some general wear and tear, it remains in good condition. Another marking to note is an ARP marking stamped onto the right side, adding further credence to this piece being wartime and there’s another 1941 stamp on the metal ring holding the filter on.

The elastic straps still have stretch and life in them, however the back piece is quite rigid now. The viewing windows are also showing signs of delamination. Despite this, it remains an excellent piece because the markings are so clear. All too often the date markings get worn off or rubbed away, and not only are the date markings still there, the ARP marking is very clear and visible too.