Stock Certificate Guilloche Engraving

Render the source in the visual lineage of late-19th and early-20th century American stock certificates, the steel-plate intaglio register used by American Bank Note Company and its peers. Subject rendered as a central vignette in pure line-engraving: parallel hatching, cross-hatching, stipple shadows, no tonal gradients, only line density variation. Surround the subject with an elaborate guilloche border of interwoven lathe-cut spiral patterns, looped rosettes at the corners, a heavy ornamental cartouche above and a banner ribbon below, all rendered as fine engraved line. Ground tint: a single muted color underlay (sepia green, claret red, slate blue, or banker's gold ochre) printed beneath the black engraving, with the suggestion of a watermark in the paper. Paper texture: heavy laid stock with deckle edges, faint fiber, evidence of age and handling. The cartouche and banner show texture suggesting embossed type but never resolve into legible letters. Color palette: ink black plus one muted security underlay tint, on cream rag paper. Mood: pre-electronic capital markets, the era when ownership of a thing meant holding a physical document signed by a clerk. No legible on-canvas text, no logos, no named hate-symbols, no real-person defamation. Preserve the subject, pose, and composition of the source image exactly, change only the medium and rendering.