It is stamped for the 8th November 1939 and has the War Office arrow on both the canister and mask. It also has the stamps for normal, which means medium, although it will fit up to a large size
The condition is good and it's very clean and tidy and the rubber is in fine fettle.
It would be a super addition to any collection, excellent display piece, or authentic period prop.
Thanks for looking and please cast a glance at my other vintage and historical items.