Yes, that was certianly easy to do, IF YOU DON'T USE PURPORTIONAL TYPE!
To do the same with purportional type, you would have to compute the exact spacing for every letter, and space over the exact amount INCLUDING FRACTIONAL "SPACES". Old purportional typewriters could backspace less than one "real" space.
It may not have been possible at all to create this document with a typewriter, IF it proves that not even these sub-spaces will work exactly.
BUSTED!
This is hard-core proof!
Great point, which escaped me when I made my initial comment about centering.