Headquarters 23rd A Brigade R.F.A. stamp.
SECRET. Sa/35

O.C. Battery.

(1) At 3 pm on 19th inst 12th Division are improving and extending their gains of last night, about LONG TRENCH.

(2) The Artillery Barrage will not open until Z+ 10 secs.

(3) The 23rd Army Brigade will co-operate as follows: –
At Zero +10 secs Batteries will put down a Barrage over the whole of the area allotted to them as follows.
107…. O.3.a.1.1. – O.3.a.5.3. – O.3.a.2.5. – O.2.b.8.3.
108…..O.2.b.8.3. – O.3.a.2.5. – O.2.b.9.7. – O.2.b.6.5.
C/23….O.2.b.6.5. – O.2.b.9.7. – O.2.b.7.9. – O.2.b.4.6.
D/23….S.E. edge of BOIS des AUBEPINES O.2.b.35.65. – O.2.b.4.6.

(4) RATES OF FIRE. Rounds per gun per min
18 prs 4.5 Hows
Zero + 10 secs to Zero +5 mins. 4 2
Zero + 5 mins to Zero +20 mins 3 2
Zero +20 mins to Zero +30 mins 2 1
Zero + 30 mins Stop!

(5) Ammunition 50% Shrapnel & H.E.

(6) ACKNOWLEDGE.

V.C. Ritchie Lt. R.F.A.
ADJUTANT 23rd A. Bde. R.F.A.
18.7.17.