Opera hat, gibus, men's, corded black silk, collapsible crown with internal spring mechanism so that it could be folded flat and stored under a theatre seat, narrow hatband of matching silk, medium brim with tightly curled sides, lined black silk, made

Opera hat, gibus, men's, corded black silk, collapsible crown with internal spring mechanism so that it could be folded flat and stored under a theatre seat, narrow hatband of matching silk, medium brim with tightly curled sides, lined black silk, made by G A Dunn and Company, approximate height when open 160mm, approximate depth 280mm, c1890-1910