The original lens hood for the Mamiya 7 65mm lens is a bit delicate. This is a model to print your own replacement if your lens hood has kicked the bucket.
This hood uses a bayonet mount, the same as the Mamiya hood does and it can also be stored on the lens in the reverse direction, the same way that the original factory hood can be stored.
Hopefully, somebody in the thinning ranks of Mamiya 7 shooters will find this useful.
If you don't have a printer or don't want to deal with the printing and finishing. I have a finsihed one for sale on ebay. https://www.ebay.com/itm/296038453517
Have a great day and thanks for looking.
:)
Tom