Cyanotypes are unusual among works on paper: the Prussian blue image is sensitive to alkalinity, so the buffered matboards that protect most prints will slowly fade a blueprint.
The brief
Four original drawings of the house itself, found rolled in the attic during a renovation, to be hung together above the sofa in the front parlour.
The approach
Unbuffered, pH-neutral cotton rag for every surface touching the paper. Reversible Japanese paper hinges and wheat-starch paste. UV-filtering acrylic. Ebonised ash mouldings to sit with the room's original woodwork, cut to identical outer dimensions so the set reads as one piece.
Every material we used is reversible - in another hundred years the drawings can come out of these frames exactly as they went in.