That's a nice looking one! The Imperial 30 was introduced for the 1953 model year, and the same basic cabinet design used through the 1957 models, with changes made to the control panel each year. Lemon Yellow and the other colors were introduced on the 1955 models. I have one from the first year, and the clock is in the center, with the oven control to the left, and the minute timer on the right.