The Merry Widow Hat

The Merry Widow was an operetta written by Austrian composer Franz Lehar (Libretto by Victor Leon and Leo Stein) that premiered in 1905 and soon became an international sensation. It also inspired a fashion craze for large, oversize hats for women. I did a Google search for I. Grollman, the publisher of this card, and didn't find anything about Grollman, but I did find page after page of Grollman cards for sale, many of them built around the Merry Widow theme and all novelty cards.