I was looking for something unique to celebrate our 50th high school class reunion. Since we only had 150 graduates, using the numerals 1, 9, 7 & 4, I inserted the B&W senior class photos of our classmates. I just assembled the puzzle and it turned out great. For the event, I will have it displayed on a table with ~50-75 pieces missing so attendees can assemble it during the reunion. Look at those hairstyles!!!