High-back lounge armchair in mid-century modern style, based on the Gae Aulenti Model 54-S1 design, featuring a painted metal frame with leather upholstery.

Designed by Gae Aulenti for Knoll International in 1977, the 54-S1 belongs to a body of work that placed Aulenti among the foremost figures of Italian postwar design — her output spanning furniture, architecture, and exhibition design across several decades.

Specifications:
- Dimensions: H 29.5 in (75.0 cm) × W 31.5 in (80.0 cm) × D 35.4 in (90.0 cm)
- Materials: Leather upholstery, painted metal frame
- Style / Period: Mid-Century Modern, 1977
- Origin: Italy
- Formats available: 3ds Max 2024 (Corona), FBX, OBJ

Part of a curated collection of iconic 20th–21st-century designer furniture: a single, real-world-scaled, PBR-textured object with verified dimensions, named materials, period, and country of origin — structured for architectural visualization, product rendering, and 3D / computer-vision machine-learning datasets.
— Taxonomy: Furniture › Seating › Armchair
— Designer: Gae Aulenti · Origin: Italy · Period: Mid-Century Modern, 1977 · Real-world scale: imperial + metric

Included: all listed 3D formats, materials and textures. Not included: backgrounds, props or environment shown in preview renders.