1159 Sequence number source, coded [B] Desc: Specification of the source for a specified sequence number in a coded form. Repr: an..3 1 Broadcast 1 Report from workstation 1. 2 Broadcast 2 Report from workstation 2. 3 Manufacturer sequence number The manufacturer's plant requesting the delivery of the item has allocated the sequence number. 4 Manufacturer production sequence number The plant requesting the delivery of an item assigns a number indicating the sequence of the finished article. 5 Transmission sequence The positional sequence when transmitted. 6 Structure sequence The positional sequence in a message structure as published in a particular UN directory.