Wattson

This little half-gas mask is the most mysterious element of my collection, all I know about it is: it was manufactured by Wattson, it comes from World War II and it was a civilian mask. I personally suspect that it could have been a prototype, but with this amount of information it could be anything. If anyone has this mask or information about Wattson Securiti & Protect, please contact me in the contact tab. Thanks in advance for any information, maybe with the help of others I will be able to learn more about it