vintage vent grille 3d model

1990s old garage atmosphere, photorealistic PBR reference, real object, 1:1 scale, period materials and colors (faded paint, slightly dusty, oil-stained patina), sharp details (screws, seams, wear, stickers), centered, neutral gray background, soft diffused studio light, ONLY one object in the picture, no other objects, no extra parts, no hands/people, no text in the background. single metal ventilation grille, light rust, dust. Generate only 1990s-era objects. Keep a consistent old-garage look and feel. Use photorealistic PBR look with real-world scale. Exactly one object per generation photorealistic old 1990s garage object, physically plausible materials, strictly one single object only, no extra props, no extra parts, no humans, centered composition, neutral gray studio background, soft diffuse light.