863-865 2nd Indicator 2 - Compressed, use textual display:

Value 2 indicates that the enumeration and chronology in a basic bibliographic unit (field 863) or supplementary material field (field 864) is expressed in a compressed form but that a display of the data may not be generated from the field. Instead, the 866 /867 Textual Holdings field that is linked to the 863 or 864 field by the linking number in subfield $8 (Link and sequence number) may be used to generate a display. Example: