An example of the teleprinter message from No.27 OTU to No.91 Group.

Example of teleprinter flimsy
http://www.rafcommands.com/Images/Lettered/FormD/DSCF1881.JPG

Example from No.20OTU
http://www.rafcommands.com/Images/Lettered/FormD/DSCF1432.JPG

The lines are
A - Form and Serial Number
B - Date
C - Unit
D - Targets attacked and Target Numbers
E - Sqns, type and aircraft codes
F - Times between which attacks were made
G - Height of attack
H - Number and type of bomb
J - Bombing results seen
K - Casualties to own a/c
L - Casualties to enemy a/c
M - Remarks
N - Short note of any failure of equipment
O - Time of Origin

Regards
Ross