Patented March 15, 1881 by Henry J Smith [U.S.A.]. "He assigned this so-called "ambidextrous" pitcher to Bryce, Walker & Company" [U.S.A.]. Information comes from the book AMERICAN PRESSED GLASS and FIGURE BOTTLES by Albert Christian Revi c.1964. He shows two illustrations from the patent. No patent no. given. You may be able look it up on the U.S. patent office website with name and date.