The most frequent autonomic symptoms associated with multiple system atrophy are a sudden drop in blood pressure upon standing (orthostatic hypotension), urinary difficulties, and erectile dysfunction in men.
The IBM Selectric typewriter was a highly successful model line of electric typewriters introduced by IBM on 31 July 1961.
By the mid-1930s, electric typewriters were beginning to bring an end to the era of the great manual operators. Margaret Hamma is seen above typing against the clock in New York in 1936. In 1941, Hanna typed at 149 words a minute for one hour, which remains a world record for an electric typewriter.