Which Ruler? [решено]

A Billon Tanka not in a very good condition, weighing nearly 9 grams, but I can't identify the ruler. Thanking you all for going through this mysterious specimen :)

Hello 🤖

Without pictures, it will be very difficult for anyone to help you. Could you please post clear pictures of each side of your item?

Please note that this is an automatic message. Feel free to ignore if it is not relevant.

N#202770

Thank you a lot, you made my day 🙏🏻.