Specimen reserved from the blue chemistry
Light Leaves Its Witness
Pressed forms hold the page in white while the exposed sheet settles into Prussian blue.
Plate XII
Reserve silhouette upon ferric blue paper
Narrow folio measure
Specimen reserved from the blue chemistry
Pressed forms hold the page in white while the exposed sheet settles into Prussian blue.
Plate XII
Reserve silhouette upon ferric blue paper
Narrow folio measure