Both empty CO2 bottles are in the side cylinders. This is a B-4 Mae West life preserver and was once owned by Jerry Bendrom of Ironwood Michigan. I looked like it belonged to someone before that by the name of Peterson but the name was scratched out. The item "WW2 US USAAF Army Air Force Mae West B-4 Life Preserver Vest 1943 or 1945" is in sale since Monday, August 27, 2018. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Personal Gear".
The seller is "spiritedawaytoday" and is located in Skandia, Michigan. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica.