21 | 11756
The "Q"-list to be used in connection with The new Boe code : contents wireless radio stations, commercial and shipping houses, lines, banks, etc., ships' names, spare code words, mutilation table for Q words : all code words in this list contain the letter "Q" | | Maritiem Museum Rotterdam | |
22 | 13959
Bentley`s complete phrase code : with the cyphers numbered from 00000 to 31462 : nearly 1000 million combinations : with at least 2 letters difference between each half code-word | | Maritiem Museum Rotterdam | |
23 | 13960
Bentley`s second phrase code | | Maritiem Museum Rotterdam | |
24 | 16260
Private telegraphic code | | Maritiem Museum Rotterdam | |
25 | 16914
Special private code for nitrate shipments | | Maritiem Museum Rotterdam | |
26 | 16915
Private telegraphic code | | Maritiem Museum Rotterdam | |
27 | 17648
The ABC Telegraphic code | | Maritiem Museum Rotterdam | |
28 | 18101
The nautical telegraph code book and postal guide for officers in the mercantile marine, and all persons travelling abroad | | Maritiem Museum Rotterdam | |
29 | 18525
Handleiding bij het onderwijs in electrotechniek | | Maritiem Museum Rotterdam | |
30 | 18642
Draadlooze telegrafie : een populair-wetenschappelijke uiteenzetting van hare beginselen en toepassingen | | Maritiem Museum Rotterdam | |
31 | 20379
Leidraad in gebruik bij de opleiding tot radio-telegrafist bij de Koninklijke Marine | | Maritiem Museum Rotterdam | |
32 | 26393
Draadlooze telegrafie : een populair-wetenschappelijke uiteenzetting van hare beginselen en toepassingen | | Maritiem Museum Rotterdam | |
33 | 30528
Die Untersee-Kabel in Wort und Bild | | Maritiem Museum Rotterdam | |
34 | 30532
The "Q"-list : for use in conjunction with the Boe code : commercial and shipping houses (supplement to the Boe code : blank codewords for private use : all codewords in this list contain the letter "Q" : if a Boe code telegram contains half codewords with "Q" seek these words in this list only | | Maritiem Museum Rotterdam | |
35 | 30604
The Boe code : commercial phrase and shipping code : with sections for commodities, geographical names, money, numerals, quantities, etc. Particulars of ships, combinations of orders and other tables | | Maritiem Museum Rotterdam | |
36 | 31577
Die Elektrizität auf den Dampfschiffen | | Maritiem Museum Rotterdam | |
37 | 31861
Bescherming van onderzeesche telegraafkabels | | Maritiem Museum Rotterdam | |
38 | 33099
Lloyd's pentegram shipping code for reporting two phrases in one code word | | Maritiem Museum Rotterdam | |
39 | 35231
Telegraphic code : phrase part | | Maritiem Museum Rotterdam | |
40 | 35447
De electrotechnische school : leerboek der practische electriciteitsleer voor zelfstudie en ambachtsonderwijs | | Maritiem Museum Rotterdam | |