Grade de Selos Postais Vintage de Cidades

A clean collectible asset sheet of vintage illustrated postage stamp designs for an atlas-style [North America] city collection, arranged on a landscape off-white background with generous margins and even spacing. Layout and Composition: - Exactly 18 vertical postage stamps arranged in a precise 3-row by 6-column grid. - Each city is displayed as a pair: first a sepia monochrome engraved stamp, followed immediately by a muted hand-tinted full-color version. - Wide spacing between pairs and rows. - Small, faint gray export captions beneath each paired group, left-aligned, following the naming pattern '[stamp-export-atlas-north-america]-46', '[stamp-export-atlas-north-america]-47', '[stamp-export-atlas-north-america]-48', and so on. Stamp Design & Typography: - Cream perforated edges, aged paper texture, delicate ornate vintage borders, and arched or oval central illustration frames. - Top-left corner reads '[SOL]', top-right corner reads '[100]' on every stamp. - Bottom features an ornate ribbon banner containing the city name, with stacked state and country text below in vintage serif uppercase lettering. - Visual finish: [alternating sepia engraving and muted full color] with fine line hatching, worn ink, and soft drop shadows. Grid Content (18 stamps in order, left to right, top to bottom): 1. Sepia: Boston, Massachusetts, United States (historic narrow street scene) 2. Color: Boston, Massachusetts, United States (red brick buildings, streetlamp) 3. Sepia: Charlotte, North Carolina, United States (storefront street with 'Noda' sign) 4. Color: Charlotte, North Carolina, United States (colorful storefronts, greenery, blue sky) 5. Sepia: Chicago, Illinois, United States (vertical 'Chicago' theater marquee sign) 6. Color: Chicago, Illinois, United States (theater marquee in warm gold and teal) 7. Sepia: Wicker Park, Chicago, Illinois, USA (storefront facade) 8. Color: Wicker Park, Chicago, Illinois, USA (orange brick storefront, teal signage) 9. Sepia: Cincinnati, Ohio, United States (historic market hall) 10. Color: Cincinnati, Ohio, United States (brick orange market, green accents, sky blue) 11. Sepia: Cleveland, Ohio, United States (grand arched arcade interior) 12. Color: Cleveland, Ohio, United States (teal glass arched ceiling, warm interior lights) 13. Sepia: Dallas, Texas, United States (skyline and 'Deep Ellum' sign) 14. Color: Dallas, Texas, United States (vibrant street scene, teal sky, 'Deep Ellum' sign) 15. Sepia: Denver, Colorado, United States (giant bear sculpture outside glass facade) 16. Color: Denver, Colorado, United States (bright blue bear sculpture, reflective green glass) 17. Sepia: Des Moines, Iowa, United States (Tudor-style house) 18. Color: Des Moines, Iowa, United States (red roof, cream stucco, green lawn, clear sky) Constraints: No people, modern logos, or extra decorative graphics outside the stamp grid. Maintain strict 3x6 alignment and consistent stamp dimensions.