Gearbox Diecast Shell Stinson Bank

I bought this at a thrift store when I was a kid pretty cheap. I know it isn't super valuable but it will be one day and even then it will have even more sentimental value to me. The colors are very vibrant and there is not a scratch or dent on it. It has the original box and the serial number is 0773. The wheels are rubber and the plane is VERY heavy. Very few plastic parts on it. The wheels do roll and the propeller spins. I only took it out to take pictures. Also, my apologies for the one picture being upside down.