Once the new inlays or float paperhad been created, drawings selected from the RIBA collection for the Palladio 500 exhibition were placed in one of three types of window mounts:
standard overthrow aperture mounts (two pieces of board with a window)
deep overthrow aperture mounts (three pieces of board)
deep double-sided aperture mounts, where both sides of the paper could be viewed
A mount is used so that:
the drawing can be viewed easily
the drawing is secure for travel, display and handling
The method chosen needs to be sympathetic to the drawing.
The apertures were created using a computer operated mount-cutting and box machine supplied by Zund UK used in the V&A Paper Conservation department.
Deep double-sided mounts were required for the seven drawings where both sides needed to be shown in the exhibition.
For the 18 drawings that still had minor undulations, deep mounts were needed to make sure that the surface of the paper would not rise above the depth of the aperture, nor would it touch the UV plexi glass once framed.
The remaining 31 drawings were mounted in standard overthrow mounts.