海草标本的蓝晒负形

An authentic cyanotype print of two seagrass fronds and a small shell, deep Prussian blue field, delicate white contact shadows and uneven handmade paper edge.

两枝海草与一枚小贝壳的真实蓝晒印相，深普鲁士蓝底、细白接触投影与不齐的手工纸边。