| No.
|
Caliber
|
Length
|
Model
|
Serial No.
|
Manufacturer
|
Carriage
|
Service Dates
|
Notes
|
| A-1
|
12" Mortar Rifle
|
129.25"
|
1890MI
|
|
114
|
Watervliet
|
Mortar, M1896MI, #269, Rarig Engr. Co.
|
1902-1942
|
|
| A-2
|
12" Mortar Rifle
|
129.25"
|
1890MI
|
|
77
|
Watervliet
|
Mortar, M1896MI, #270, Rarig Engr. Co.
|
1902-1918
|
Removed 1918
|
| A-3
|
12" Mortar Rifle
|
129.25"
|
1890MI
|
|
90
|
Watervliet
|
Mortar, M1896MI, #272, Rarig Engr. Co.
|
1902-1942
|
Became Gun #2 in pit A
|
| A-4
|
12" Mortar Rifle
|
129.25"
|
1890MI
|
|
133
|
Watervliet
|
Mortar, M1896MI, #271, Rarig Engr. Co.
|
1902-1918
|
Removed 1918
|
| B-1
|
12" Mortar Rifle
|
129.25"
|
1890MI
|
|
134
|
Watervliet
|
Mortar, M1896MI, #273, Rarig Engr. Co.
|
1902-1942
|
|
| B-2
|
12" Mortar Rifle
|
129.25"
|
1890MI
|
|
67
|
Watervliet
|
Mortar, M1896MI, #274, Rarig Engr. Co.
|
1902-1918
|
Removed 1918
|
| B-3
|
12" Mortar Rifle
|
129.25"
|
1890MI
|
|
137
|
Watervliet
|
Mortar, M1896MI, #276, Rarig Engr. Co.
|
1902-1942
|
Became Gun #2 in pit B
|
| B-4
|
12" Mortar Rifle
|
129.25"
|
1890MI
|
|
128
|
Watervliet
|
Mortar, M1896MI, #275, Rarig Engr. Co.
|
1902-1918
|
Removed 1918
|
| Source: Coastal Defense Study Group
|