Numbers used in reference to Navy Equipment

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