Soda King Super-Chargers Box

Just a cool old find! Vintage Soda King Super-Chargers in box. Features a teal and yellow design with bold branding."Soda King Superchargers" refers to KIDDE Soda King Superchargers, which are cartridges used for recharging soda syphons, essentially enabling the user to make sparkling water at home. These are typically used with a rechargeable soda syphon or seltzer bottle. This is a vintage item from the 1930s. The box is open but all ten cartridges are intact.