552 "The Adams"
This attractive model of the world's most dependable timekeeper is meeting with unusual favor. It is 7 1/4 inches high, 4 1/2 inches deep with a base of 17 1/8 inches. The dial is of etched silver 5 inches in diameter. Case mahogany.
Okay, now explain this one. I don't know if this was a mistake, a prototype or an early version.