Recto: front
Verso: back

But could they mean the right hand page of a MS?
Better ask for conservation proposals in english in the next round.

>In preparation for a grant proposal, we have received bids from several
>individuals for the repair and restoration of a number of paintings.  One
>bid lists "humidity & support verso".  None of us have come across this
>term before, and the bidder is out of town -  can anyone help?  -thanks!