This might be the world’s only Urban Gridded Notebook. By John Briscella, it was sold by a print-on-demand publisher. Though I doubt it, I might be the only person to have ever purchased a copy.
The notebook has city grids, and no text aside from a list of cities on the last page.
You can study urban planning, or realign major cities with your doodles, or just use it as a notebook.
The paper is like thick newsprint, so there is some see-through with dark ink or graphite, though a Lamy fountain pen with F nib didn’t feather for me.
It’s a great product. Do you own one?