


This was then replaced by the H base in 1954 which was technically a better made and more versatile fitment which lasted through the generations of shells in years ahead. The original design of base, made for the Zenith Plastics manufactured DAX arm tops had an X criss-cross pattern on the part that connects to the seat top. The X part of the Eames DSX Side Chair name refers to the original base when it was developed. The DSG (Dining Side Guard) which was developed later in the mid-1950s was essentially a DSX with longer back legs that ingeniously prevented the shell from making impact with a wall!

The MSX is the same only the M refers to it being medium height. Part of the Eames plastic fiberglass series, the Eames DSX Chair abbreviation stood for Dining (D) Side Chair (S) on X Base.
