Corona Typewriter Poster
In 1926 the Corona factory merged with the L.C. Smith Typewriter Company to form the Smith-Corona company. In the late 1920s Corona introduced a range of Corona Specials, in different bright colors, like red, green and blue. The main design however, with the forward folding carriage remained the same as previous models 1,2 and 3. Unchanged also remained the way the serial number of each machine was clumsily scratched into the underside of the carriage, although it was also neatly printed on the inside of the rear panel as well.