Signaler 1908 to 1909 Blue Scout Badge
The signaler badge could be earned by first and second class scouts, as well as Scoutmasters / Leader.
According to Scouting for boys 1908
"The Badge is worn by scout masters on the left side of the hat or cap.
The badge is worn by patrol leaders on the front of the hat or cap.
The badge is worn by corporal on the left arm above elbow with a strip of white braid below it.
The Badge is worn by scouts on the left arm above the elbow. The Badge is worn by first class scouts is the whole badge, only the motto part of the badge is worn by second class scouts"
According to Scouting for Boys 1909
This badge was worn on the lower part of your right arm, starting from the cuff upwards. Badges were positioned in order of achievement.. If you were a Scout Master the badge was worn on the left of your hat / Cap.
To Achieve this badge According to Scouting for boys 1908
The ability to read and send Morse and semaphore message twenty letters a minute.
According to Scouting for boys 1909
Pass tests in both sending and receiving messages in semiphore and in morse. Not less than twenty-four letters per minute.
To give and read signals by sound
to make correct smoke and flame signals with fires
to give the proper signals [as in infantry training] to show the presence of enemy etc