This depends on the condition of the bill. In normal used condition, they are worth exactly $2. $2 bills dated 1976 and newer are the ones worth face value only. The $3/$4 figure is reasonable for bills dating back to the 1950s.
Klein thought he had, discovered the poison to be due to a disease of the cow. An epidemic of scarlet fever broke out in London in December, 1885, and the outbreak could be traced to the milk supplied by a herd in Hendon.
1 Researchers from Europe estimate that some time in the early 1930s a form of simian immunodeficiency virus, SIV, was transmitted to humans in central Africa. 2  The mutated virus was later identified as the first of other human immunodeficiency viruses, HIV-1. A San Francisco prostitute gives birth to the first of three children who were later diagnosed with AIDS. 2  The children's blood was tested after their deaths and revealed an HIV infection. 3  The mother died of AIDS in May 1987.