BSH 2160 International Signalling Book (ISB)

The BSH 2160 Internationales Signalbuch (ISB) für die Seeschiffahrt published by the BSH. The book contains all transmission procedures such as radiotelephony, flag, Morse and flashing signals together with all codes and abbreviations. Necessary on board all professional vessels, recommended for training at maritime schools and in the Mariner.

- Publisher: Federal Maritime and Hydrographic Agency (BSH)
- Current edition: 2007 (status 1969)
- BSH No. 2160