The List

So here is the list of machines I came up with for the GCC North exhibition. I have had to make some tough editorial decisions, but I would love to hear  from you. How complete or incomplete is this list? I have tried to represent a century of typewriter evolution. Does this collection pull that off?

	1909 Corona 3
	1921 Underwood Standard Portable
	1926 Remington 12
	1935 Remington Model 7
	1937 Corona Standard
	1942 Royal Arrow Navy Radio Mill
	1954 Royal HH
	1959 Olympia SG-1
	1959 Olympia SM3
	1961 Brother Valiant
	1961 IBM Selectric
	1985 IBM Wheelwriter 5