-ANTWERP
The use of the postmarks in the city of Antwerp is situated between 3/10/1914 and 10/10/1914, namely between the appearance of the de Merode set and the dispossession of the city.
LIST OF THE POST OFFICES:
  -ANTWERP 1: Groenplaats, first class perception count caracters: A-F,A-L,V-V,B-B,E-E,S-S,W-W.
-ANTWERP 2: Doks, third class perception count caracters:A-A
-ANTWERP 3: Dam
-ANTWERP 4: Kiel, under-perception first class count number: 4 without caracters.
-ANTWERP 5: Palace, count caracters:A-A,C-C.
-ANTWERP 6: Central Sation; first class perception. count caracters: B-B,D-D,K-K,L-L,Q-Q,J-J, P-P.
-ANTWERP 7: Industrielaan; second class perception. count caracters:a-a,b-b,c-c,d-d,e-e. count number 7 without caracters.
-ANTWERP 8: St.Jansplein; second class perception: count caracters: D-D,H-H.
-ANTWERP 9: Dageraadplaats:third class perception count caracters:B-B.
-ANTWERP 10: Jezusstraat : count caracters a-a,b-b,d-d,e-e,f-f,g-g,h-h,j-j.
-ANTWERP 11: Charlottelei, fourth class reception

 
   
The cachet 1 A-L

One can find Antwerp cachets on the de Mérode stamps with dates between 3/10/1914 and 10/10/1914, namely between the first day of issue and the fall of the city.
Apparently a few cachets were stolen and used at a later date to postmark stamps, real and false.
Now we're going to give an inventarisation of the number of cachets in our collection, with a few remarks, and we pay attention to the cachet 1 A-L, the most common falsification.

1) The date most found on the stamps is 7/10/1914 , the day of the beginning of the bombardement on Antwerp.
By this we give a summing up according to bureau and date, without the 1 A-L cachet.
  1 B-B
7 12-13 X
1914
2
 
    E-E
9-10 4 X
1914
2
 
      11-12  7 X
1914
1
 
    S-S 9-10 6 X
1914
1
 
    V-V 9-10 7 X
1914
18
 
    V-W 9-10 7 X
1914
1
 
    W-W 2-3 7 X
1914
1
 
      8-9 7 X
1914
6
 
      7 X 2-3
1914
5
 
      18-19 7 X
1914
4
 
      18-19 8 X
1914
10
 
             
  2 A-F 6-7 7 X
1914
4
 
      7-8 7 X
1914
3
 
      20-11 7 X
1914
5
 
    A-A 16-17 6 X
1914
1
 
             
  5 A-A 11-12 7 X
1914
3
 
    C-C 5-6 7 X
1914
6
 
             
  6 B-B 9-10 7 X
1914
3
 
    D-D 9-10 7 X
1914
1
 
    L-L 19-20 7 X
1914
1
 
    P-P 6 X
1914
3
 
    Q-Q 6 X 
1914
2
 
      7 X 8-9
1914
1
 
           

  7 B-B 14-15 5 X
1914
2
 
      17-18 6 X
1914
1
 
      8-9 7 X
1914
3
 
    C-C 7-8 7 X
1914
22
 
      15-16 5 X 1914 1  
    D-D 10-11 7 X
1914
1
 
             
  8 B-B 16-17 7 X
1914
2
 
    D-D 10-11 5 X
1914
3
 
    H-H 15-16 7 X
1914
27
 
      17-18 7 X
1914
1
 
 
SUMMARIZED:

  on 179 cachets the date
    4 x 1914    is found 2 times
    5 x 1914    is found 6 times
    6 x 1914    is found 7 times
    7 x 1914 is found 154 times
    8 x 1914   is found 10 times
  therefore the date 7 X 1914 is found in 154 cachets on 179 , hence 86 %.

2) The cachet 1 A-L
  a) on real Mérode stamps :
      9-10 7 X
1914
24
 
      12-13 7 X
1914
6
 
      12-13 9 X
1914
4
 
      7-8 7 X
1914
1
 
  b) on closed Q falsifications:
      11-12 X 7
1914

 
        on 5 c 4 times ( 2 times with centre part reversed )
on 10 c 5 times ( 2 times with centre part reversed )
on 2 0 c 2 times
      9-10 7 X
1914

 
        on 10 c 1 time
on 20 c 1 time
  c) on open Q falsifications:
      9-10 7 X
1914

 
        on 5 c 3 times
on 10 c 3 times
      11-12 7 X
1914

 
        on 5 c 1 time

Our conclusion can be that the cachets 9-10 and 11-12 7 X 1914 are always suspicious, also on real stamps.
Only the cachet 12-13 7 X 1914,12-13 9 X 1914 en 7-8 7 X 1914 can we declare as real until now.