I bought this typewriter over the weekend in Sedro-Wooley, Washington. It was manufactured in March, 1929. This typewriter, called the Remington Model 3, was introduced in 1928, and discontinued in 1938. It came in several attractive color schemes; this one is "Colette and Endowa" Blue.
While this typewriter looks green from some angles, it is actually two-tone blue.
A Nyanza and Cellini Green Remington is seen below.
Below are ads provided to me by Richard Polt. His site devoted to prewar Remington portables can be found here: http://site.xavier.edu/polt/typewriters/rem-portables.htm