American Metals Tea Leaf Infuser

I've seen these infusers before but not with a medallion like this. It reads 1833 - 1934 A Century Of Progress Chicago. A Century of Progress International Exposition was held in Chicago during the summers of 1933 and 1934 to commemorate the incorporation of the city in 1833. This collection consists of the incomplete operating records of A Century Progress World's Fair. Listed in it twice is the name American Metal Craft Company. I'm figuring it was made for this occasion. Too bad I couldn't find the tray that went with it, but I thought it neat anyway. I just enjoy little pieces of the past. Thanks for looking