A month or so back we looked at the Canadian 64 pattern respirator haversack here; since writing that piece I have been very happy to add a Canadian C3 respirator that would have been carried in the haversack to my collection:This mask is contemporaneous with the British S6 mask, being first manufactured in 1960, but is far less sophisticated. It is clearly closely based on the earlier British lightweight respirator from the Second World War, just updated for the Cold War. Looking at the mask we can clearly see the similarities, with the same side mounted canister, general shape of the mask and the screw fitting for a microphone seen in the post war British lightweight respirator:Updates have been made however, with the head harness being made of more modern man-made materials:The ‘snout’ of the respirator boasts a distinctive piece of silver mesh:This is also visible on the inside of the mask:Above this is a distinctive triangular shape, moulded into the rubber:The facepiece of this mask is marked as being made in 1970 by ‘GTR’, General Tire and Rubber:There were two manufacturers of this mask, the other being ‘Baron’. This respirator is a ‘Normal’ size- other smaller and larger sizes would have been produced in limited numbers for those with odd shaped faces. The canister for this mask uses a 60mm thread and is mounted on the side of the mask:A piece of tape around this section has a date of June 1971:The canister itself is made of pressed metal with a large screw thread on the top allowing it to be changed relatively easily by the wearer.These masks were used throughout the 1970s and were only phased out of Canadian service in 1989. Amazingly export sales of the mask continued into the early 1990s, by which time the design was decidedly obsolete.