Create a small stone arch bridge in medieval style. Dimensions approx. 200 mm length, 60 mm width, 70 mm height. One large central arch, slightly rounded walkway. Outside rough hand-carved stone texture, inside smooth enough for printing. Stones irregular but well-defined. Walls 4 mm thick, arch thickness 6 mm. Fully solid and printable in PLA with no overhangs beyond 45 degrees.

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