"The Captain" Duplex Pump Fyr-Fyter

I'm a firefighter so obviously I'm drawn to firefighter related items. My family was in an antique shop in Florida and found this pump can. Personally I had never seen one and I'm having a tough time finding it on the internet. I love the Firefighter on the front and the whole mechanism. Everything is intact, the pump works, the foot peg folds down, the hose is there, cracked but complete. The nozzle I believe is original but it is now held on by a hose clamp and not the original crimp fitting. I'm torn I don't know if to polish it up or leave it as is. Now I'm on the hunt for information, I'm struggling to find out more about it. But it's all part of the fun.