Frequency
Frequency is the number of occurrences of a repeating event per unit of time. Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light.
All Frequency signatures are guaranteed by Autograph World to be authentic for life. They are also guaranteed to pass third party autograph authentication.
Available Autographs
Customers that purchased autographs of Frequency also purchased items similar to the following.
Lance Kerwin