Vintage leather chunky heeled boots color rust orange brown size 5

Outside of boots are still intact, but the inside is old and worn. I used shoe pads on the bottom for comfort. The size says 6.5 but they fit like a size 5. Also, when I bought them, one boot was a lighter color than the other and the owner said that it was because one was sitting in the sun for longer and it changed the color over time.