You can see a lot of scratch marks here. They look deliberate and back and forth, rather than many different people just walking by and rubbing against it.
You can also see sideways scratches.
Please remember that these photos are all copyrighted to me. If you want to use
them in any way, there's a 90 per cent chance I'll give you my permission, and be able to
give you a copy with a higher DPI.