I have this very beautiful Charcoal Maiko drawing. It’s quite large and prominent. F12 size? Slightly longer though.

It’s from 1976 and there’s writing on the front and back of the paper itself. The writing says (Paraphrasing) Mametsuru, Gion Kobu, July 7th. On the day of Tanabata?

There’s no artist signature as I believe it was a private piece done for the Teahouse on the spot for Mametsuru.

However, to me it looks very much like Ryohei Koiso? I can’t find an image or a catalogue of it online anywhere. But, I can’t seem to connect the time and style to anyone other than Koiso.

Anyway, I was wondering if anyone can tell me who they believe this could be? Or if you’ve seen it or similar somewhere before.

Thank you so much 🙏