Bell signal; mechanical telegraph
NSN 5960-01-144-9183
NSN 4140-01-443-7561
NSN 5999-01-254-2763
NSN 5895-01-432-2869
NSN 6610-01-437-0961
NSN 6130-01-197-5817
NSN 5855-01-042-7990
NSN 5905-01-057-9654
NSN 5996-01-547-3050
NSN 5935-01-354-9900
NSN 6145-01-476-4056
NSN 2925-01-430-4206
Last Updated: 05/03/2024