this?OO7 wrote: ↑17 Feb 2022, 16:02What's going on under the "San" of Santander on the nose in this profile shot? There are a couple of downward sloping (downward from front to back) curved lines or slots.
https://pbs.twimg.com/media/FLzSgbUWQAc ... =4096x4096
looks interesting