The original Braun wordmark was designed by Will Münch in 1934.
This reversed option (below) came about in 1939.
“Wolfgang Schmittel joined the Braun design department as a freelancer in August of 1952. Upon his arrival, he revised the Braun logo and also gave it a reduced, constructively comprehensible form.”
— SIGHT UNSEEN
As we see it today.
Update: 23 July 2010
Daniel sums it up nicely when he says, “I absolutely love the geometric simplicity of the current incarnation, although their actual product and packaging design leaves a lot to be desired.”
More logo evolutions.
Via Sight Unseen.