For Franklin Mint cars how do I match the number on the box to the car?

I don't have the paperwork, just the boxes and cars. I have lot of cars that are not in the boxes and I would like to match the cars with the correct box. Here are five of them:



B11UX55, B11UK08, B11TQ13, B11TU51, B11XE71

For Franklin Mint cars how do I match the number on the box to the car?
doesn't it give the number on the bottom of the car and on the box

it should do