Found on kijiji montreal canada

[Bowswell]

https://www.kijiji.ca/v-autres-moto/ville-de-montreal/honda-cb-750-sandcast-engine/1555501029?utm_campaign=socialbuttons&utm_content=app_ios&utm_medium=social&utm_source=ios_social

[Sam]

Looks like a hold was drilled above the engine number on the upper cases. Thats too bad.