Private Number
A Private Number is a number, obtained over the telephone
or telegraph from the station master of the station granting Line Clear or
requesting points to be set or signals to be pulled off. This number is noted
on the paper forms such as the Line Clear Ticket or Conditional Line Clear
Certificate and can be verified later at the receiving station (the one
granting Line Clear) or requesting the signal or points change. This is an
additional safety device.
