This Sunbeam model T-9 chrome toaster is perhaps the most famous and most popular American toaster ever made. Produced from 1939 to 1949, it has a humpback or half moon shape and incised Art Deco decoration that strongly resembles the iconic 1939 World's Fair Trylon and Perisphere. Turn the toaster upside down and the design is a stylized T9.
The last patent number on the bottom is from 1942, which would be the year of production. The toaster works perfectly including the automatic pop-up feature and the glowing jewel eye in front, but there are some cosmetic issues - mainly a chip to the back corner of the right side Bakelite handle. When displayed front-facing on the countertop, it doesn't show. There are some minor scuffs and cleaning marks to the chrome finish, and the cord has some fraying where it extends from the back of the toaster. The plug is missing the cardboard disc insert between the prongs.
The Sunbeam T-9 has an extra adjustment control on the bottom in case the light/dark switch at the side doesn't give you the desired amount of toasting. Also, the opposite side has a knob which will keep your toast warming inside the toaster instead of popping up if you wish.