This Smith-Corona Galaxie has a feature that I have never seen (in person)--a dust cover:
Notice that the Smith-Corona logo is on top of the ribbon cover--later models have it next to the SCM logo, which is usually larger.
This typewriter is also unusual because of its lack of nicotine stains! It has a date code of 1-28 next to the serial number. The Typewriter Database says that it is a 1962 model, but according to the National Office Machine Dealers Association Blue Book, it is an early 1961 model. (The 1960 data ends at 330732. My serial number is 332643.) That would be about right for a typewriter made on January 28, 1961.