This is a new Instax Hasselblad / Hasselback v2., film back from Escura company that was created via a Kickstarter project in 2020, and final product was released in late 2023. The back takes Mini and Square Instax film. I paid around $280 for this back as I was backing the project, but unfortunately the process took too long and I ended up buying another Instax back.  

The back is still in its box, it's brand new, never used. Box was opened to inspect the item since it took 3 years to create. 

It helps to watch the video installation on youtube or through their Kickstarter page (links below).  They also have a FB group. 

This film back comes with the following:

• Escura Camera
• Viewfinder mask in it's original envelope
• Gray dark slide
• An extra winding crank.
• original box
• It did not come with printed instructions

https://www.escura-camera.com/_files/ugd/01cab5_7fb6ea93ee6e4c69a0e1ac4d7011d5fa.pdf

https://www.escura-camera.com/hasselback