| An eight-story red sandstone buildingIn the common material, red sandstone, of Glasgow, this building also owes to Glasgow's great architect, Charles Rennie Mackintosh, in its use of art nouveau carving. |  |  | 
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|  |  | Front facade with drum-shaped stained-glass window over the main entranceMany of the numerous windows have decorative stonework as well. | 
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| Varied windows with decorative sills and pediments |  |  | 
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|  |  | Decorative ironwork balconies and railingsThe popular name of the building was inspired by the fantastic ornamental roof since its projecting finials resemble an old-fashioned hatstand. |