optimus 123Bottom: Plastic Bag with Newer Svea 123ROptimus 123 Climber Repair Kit. Contains: Fuel Valve Assembly, Fuel Tank BrassCotton Fuel-Take-Up Material Assembly,Per a 1970s Optimus brochure: the Svea 123 boils 1 liter of water in 6 mins.-----EDIT: well well well credit @Tony Press recently posted c'93 Optimus catalog approximates