"Souffle Ottoman", base in solid seamlessly welded brass with hidden castors and silk upholstery, by Karl Springer, American 1980's. This ottoman is not only chic, it is comfortable.
Reference:
Karl Springer Red Binder Catalog published in the 1980’s, section titled “seating”, on page 14 is a photo of a Souffle Ottoman titled “KARL SPRINGER LTD SOUFFLE OTTOMAN (page) 14”