This is a signed original cyanotype on A3 acid-free watercolour paper. 
 
I used a triplet of pressed winter flowers that I'd been gifted, and had begun to wilt, as a negative for the cyanotype process. 
 
This print will fit in a standard off-the-shelf A3 frame. It will be shipped without a frame, with hard backing and wrapped in acid-free tissue paper and cellophane sleeve.
 
I suggest you should hang or stand the frame away from sunlight, as cyanotypes have a tendency to fade with sunlight. You could also frame under UV-resistant glass. Ideally, there should be a mat acting as a spacer between the frame and the image - air circulation is good for cyanotypes. But don't worry: if you want to expose the rough edges as in one of the pictures above, you can go ahead and mount onto the backing board.
 
Most cyanotypes last a really long time, and if there is any fading, just put away in the dark and bring it out again when the colour is restored.
 
Hope you enjoy your purchase!