The special instructional marking to show that a telegraphic message had been delayed by a problem with a line was often - in the early days - applied in manuscript by handwriting an annotation to that effect.
Examples of such annotations are provided below for:
NI-DO-1. Barmedman to Wagga Wagga. Message lodged at 10:45 am and received at 3:35 pm. Ms "Delayed interruption lines" at base. |
Melbourne to Richmond. Message lodged at 4:20 pm and received at 5:15 pm. As no date of lodgement is recorded, the delay was either brief or about 25 hours. Has mss Delayed by Interrupton to line. |