Nocona Desert Flower Camo Embroidered Pull-On Western Boots Men's Size 6.5B

Nocona boots. NL4036. Square toe. Looks like a desert flower & camo pattern. Men's size 6 1/2 B. They are just about 10 inches heel to toe, just about 3 1/2 inches at the widest spot on the bottom and just about 12 inches tall. Notice the dark area on the right boot. Not sure if this is a stain, fire damage, or what it is.