[attachment 338953 Havinablast6149.jpg][attachment 338951 Havinablast6148.jpg]Several metal canisters painted OD Green found in a box from a estate sale that had several USAF items in it. Inside the canisters are a roll of thick plastic like material. In case you can't read it on the photos the number on the outside of the can is - B 6604. Any help would be appreciated.