Wonderful White City Puzzle Safe measuring 4" tall by 2 3/4" wide. This item was patented Oct. 23, 1894 - No. 326 and is signed on the bottom. The Puzzle Safe has a clock dial and description on the front with a ferris wheel on the reverse. Each side shows the same White City building. The safe opens by unscrewing the dial on front. Appears to be in very good condition and is without damage or cracks. What a great Chicago collectible this would make!