is thought that the first Transporter plates first started
to appear in 1957, but there are few records of their existence
until the 1960s. The plates are easily identifiable by the
slogan Transporter that appear across the bottom of
all plates until 1979 when it began to appear across the top.
Since 1985, the plates have been issued in the familiar Flag
Graphic style with a "TR" prefix, generally seen
in the TR-0000 to TR-9999 format.