These waybills travel under one Master Waybill Number. Waybills are non-negotiable documents unlike bills of lading which are negotiable. Usually, airline air waybills are distributed to IATA cargo agents by IATA airlines. IATA cargo agents usually hold air waybills of several carriers. International air waybills that contain consolidated cargo are called master air waybills (MAWB). The master waybills stated that of baggage and cargo were loaded on the aircraft. Besides preparing waybills, Alice Matty was the telegrapher and the ticket agent. This eliminates the need for all paper documents when issuing air waybills. Air waybills are issued in eight sets of different colours. MAWBs have additional papers called house air waybills (HAWB). Both types of air waybills have the same format and layout. The original German waybills in his possession did not have the number of prisoners listed. In some cases, they had to check waybills that the boats had.