This file is from the National Archives and Records Administration (NARA2), College Park, Maryland, R.G. 457 (Records of the National Security Agency), Box 808
CLASS NUMBERS USED ON NAVY PROJECTS.
| N-500 | Experimental bombe |
| N-530 | 100 Bombe |
| N-550 | M-9 Machine |
| N-700 | Copperhead I |
| N-710 | Copperhead IV |
| N-720 | Copperhead V |
| N-800 | Double Bombe (1st Machine) |
| N-900 | Viper |
| N-910 | Mike |
| N-950 | Python |
| N-1000 | Recording Project |
| N-1100 | Mona |
| N-1200 | Rattler (1st machine) |
| N-1450 | Gypsy |
| N-1500 | Duenna |
| N-1530 | 29 Bombes |
| N-1530-8 | Double Bombe (2nd and 3rd machine) |
| N-1530-5 | Statistical Bombe |
| N-1585 | Special Chassis #7 for N-1530 |
| N-1600 | Asp |
| N-1700 | Sliding Grenade |
| N-1800 | M-9 machines |
| N-1900 | Grenade |
| N-2000 | Mamba |
| N-2100 | Wave Filters |
| N-2200 | Rattler (2nd, 3rd and 4th machines) |
| N-2300 | Boa |
| N-2400 | M-9 machines |
| N-2500 | Satyr |
| N-2600 | M-8 and M-9 wheels |
| N-2700 | Special Plugs |
| N-2800 | Counter Printer Punch |
| N-2900 | Full Selector |
| N-5000 | Inventory charge |
January 8, 1945
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Latest update August 2, 2009