optimus 123As are the canisters for my old Optimus 721 stove, Gaz Globetrotter stove, and Bluet 200 stove. When canisters become obsolete the stovesEarly 1970's Optimus SVEA 123. Discussion in 'Svea No: 123 & 123R' started by snwcmpr, Feb 15, 2013. snwcmpr SotM Winner Subscriber Off. Joined: Nov 16, 2011