Plate Volume, Natural History Lias Register Specimen No. IV
Fig. IV
Fig. IV. Spiral chamber, ochre wash over engraved strata line.
Hand-coloured lithograph system

Deep Time, Carefully Tinted

Earth pigment, ruled captions, and foxed rag paper turn every surface into a measured palaeontology plate.

01 Ochre Yellow wash carries the specimen without digital glare.
02 Rule Hairline strata marks keep the page archival and exact.
03 Caption Engraved notes speak in a quiet period serif.
This is the Ammonite Fossil Plate design system, applied by Curio Design — a design-style library for AI agents. Full Ammonite Fossil Plate guide → designbycurio.com/learn/fossil-ammonite-plate-1850