| Abbreviations and Symbols | |
|---|---|
| * | Datum following inferred from contemporary documents |
|   | |
| REG# | Army or Navy Registry Number |
| INSP | Initials of inspecting ordnance officer or other inspector |
| FDY# | Foundry number (founder's own internal control number) |
| GRVS | Number of rifling grooves, Right or Left hand twist |
| YR | Year cannon was completed and/or inspected |
|   | |
| Alger | Cyrus Alger & Co., Boston MA |
| Ames | N.P. Ames, Springfield MA |
| Builders | Builders Foundry, Providence RI |
| FPF Fort | Pitt Foundry, Pittsburgh PA |
| Tredegar | Tredegar Foundry or Tredegar Iron Works, Richmond VA |
| unknown | foundry is either unmarked or unreadable |
| USNYW | U.S. Navy Yard, Washington |
| WPF | West Point Foundry, Cold Spring NY |
Listings are in bore size order. Within a given bore size, the sequence is guns, howitzers, and rifles. With each of these, the order is field, then siege.
| FOUNDRY | REG# | INSP | FDY# | YR | WEIGHT | GRVS | COMMENTS |
|---|---|---|---|---|---|---|---|
| 3.4-inch bronze Dahlgren boat rifles | |||||||
| USNYW | 314 | WNJ | V | 63 | 875 | 12RH | 4th St. Gate, "V" in diamond |
| USNYW | 403 | WNJ | YW | 65 | 888 | 3RH | 4th St. gate, "YW" in diamond |
| 3.4-inch steel Dahlgren boat rifle | |||||||
| USNYW | *298 |   |   | 63 | 791 | 12RH | Trophy Park |
| 3.67-inch Navy Parrott rifle | |||||||
| WPF | 115 |   | 957 | 62 | 1795 | 5RH | Trophy Park, recovered from USS Sumter |
| 4.2-inch Navy Parrott rifle | |||||||
| WPF | 307 | RBH | 539 | 64 | 3500 | 5RH | Trophy Park, assigned to Treasury Dept. |
| 12-pounder bronze Dahlgren boat howitzer, light | |||||||
| USNYW | 130 | FMR | GA | 70 | 432 |   | Trophy Park, "GA" on muzzle |
| 12-pounder bronze Dahlgren boat howitzer, heavy | |||||||
| USNYW | 36 | JAD | C- | 54 | 754 |   | Trophy Park, no Civil War service |
| 5.3-inch Navy Parrott rifles | |||||||
| WPF | 56 | RBH | 453 | 65 | 5430 | 7RH | Trophy Park, no Civil War service |
| WPF | 61 | RBH |   | 65 | 5400 | 7RH | Trophy Park, altered to breechloader |
| 32-pounder chambered Navy cannon of 33 cwt | |||||||
| unknown |   |   |   |   |   |   | Trophy Park, reassembled fragments |
| 32-pounder Navy guns of 57 cwt | |||||||
| FPF | 125 | *JSC |   | *47 | 58-0-04 |   | Trophy Park, recovered from USS Congress |
| Tredegar | 384 | JSC | 512 | 48 | 57-2-18 |   | Trophy Park, served on USS St. Lawrence |
| 6.4inch Navy Parrott rifles | |||||||
| WPF | 75 |   | 639 | 62 | 9850 | 9RH | served on USS Florida, now breechloader |
| WPF | 165 | RBH | 50 | 63 | 9727 | 9RH | Trophy Park, no Civil War service |
| IX-inch Dahlgren shell guns | |||||||
| Alger | 242 | WRT | 1132 | 59 | 9045 |   | Trophy Park, served on USS Richmond |
| FPF | 1178 | JMB | 2447 | 64 | *9240 |   | Trophy Park, recovered from USS Huron |
| XI-inch Dahlgren shell gun converted to 8-inch rifle | |||||||
| Builders | 181 | *TAH | *76 | 64 | 15740 | 15RH | added marks: No.11, P/FJH, 1876, 17330 lbs |
| Total cannon at Norfolk Naval Shipyard: 17 | |||||||
|   | |||||||
| The following Civil War cannon are on display at Admirals Landing in Portsmouth: | |||||||
| 3.4-inch bronze Dahlgren boat rifle | |||||||
| USNYW | 249 | JAD | RV | 63 | 876 | 12RH | "RV" in diamond on lower muzzle face |
| 6-pounder bronze field gun, Model of 1841 | |||||||
| Ames | 352 | JWR |   | 47 | 884 |   |   |
| IX-inch Dahlgren shell gun | |||||||
| Alger | 887 | TAH | 1675 | 64 | 9320 |   | no Civil War service |
