Best way to mount a parchment on canvas piece?

[Worbeye]

I have a client looking to frame a very large parchment/canvas piece, roughly 40x80, and was curious what everyone's advice would be when it comes to mounting this. It is definitely wavy and well aged with some tattered edges.

 

[monkframe]

It looks like paper glued to canvas. Mounting it with a tissue-less adhesive like Flo-bond might be possible, depending on condition, but you'd have to have a really large press.
If it's really parchment, i.e., animal skin, that's not possible. Wet glueing and weighting 'til dry might be another way. Acid-free substrate, of course.

 

[wpfay]

You should at least get a paper conservator to look at it and determine just what you are dealing with, and offer suggested treatment if applicable.
A family tree done on perhaps vellum or paper, attached (with what?) to a textile (Cotton? Linen? A blend?).

Without knowing exactly what you have limits what you can do.

Another caution is unrolling it. The variable considerations are multiple.