Call Jan Paris, a conservator at UNC-Chapel Hill (919-962-1143) or anyone
in the paper lab at NEDCC for discussion.
 
I know, I know, here I go again, but you can almost never answer a
conservation treatment question over the Internet.  You almost always
need more information than the asker gives.
 
First concern here is that the work's contemporary.  Conservators often
like to contact living artists before they work on a modern piece (or to
research the conceptual underpinnings of work by a dead artist) to make
sure they're not interfering with artist's intent (and yes, some expect
their works to decay).
 
Second, if the first is not an issue, is probably the interface between
metal and paper -- there should probably be a barrier to prevent
corrosion staining -- and you need to know what metal to kow what
adhesive and what inhibitor or barrier.
 
Third is how big and heavy are the metal pieces, and how strong does that
mean the adhesive needs to be, and is there another preferrable mounting
strategy to support the metal elements.
 
And so on and so on.  Call Jan or another conservator.
 
K
 
_________________________________
 
Karen Motylewski                                508-470-1010
Northeast Document Conservation Center          508-475-6021 fax
100 Brickstone Square                           <[log in to unmask]>
Andover, MA 01810                               Use KM in subject field