An ornate Rococo arched bridge staircase designed as a focal accessory for dioramas, model railroads and miniature displays. The piece features an elegant arched span with paired stair flights, decorative balustrades, carved finials, acanthus leaves and shell cartouche ornamentation for rich period detail. Primarily sized for HO (1:87) layouts but readily rescalable for OO, N, O and common tabletop scales. 3D-print-ready design optimized for fine detail — suitable for resin and high-resolution FDM printing. Perfect as a garden or estate accent, vignette centerpiece, or architectural prop.