The titular Träbjörn/Björn 1 was an above-ground command centre assembled from wooden barracks, with a two-storey central command building, about 25 rooms, an order hall, large operations room and an extension containing pantry, day room and sleeping cabins. It had 50 direct communications connections by 1962 and a 12-channel radio link. After Wennerström's 1963 exposure, a different successor called Stenbjörn was installed in an existing STRIL 50 rock facility shared with other functions. The article deliberately withholds Stenbjörn's location and publishes no Stenbjörn area, cavern geometry, access or protection quantities. The operational role of Träbjörn is explicitly contested in the article and comments.

inner_structure: Träbjörn: above-ground compound made by joining reused wooden barracks.; Stenbjörn: successor command post placed in an existing shared STRIL 50 rock facility; no physical configuration is published. | levels: count: 2 | scope: Träbjörn central command building | evidence: Explicitly reported; it does not describe Stenbjörn. | other: Träbjörn main building had about 25 rooms plus an order hall and a large operations room.; Two old ammunition stores and other barracks formed part of the Träbjörn compound.; Stenbjörn shared an existing rock facility with an LFC, LGC and other functions; allocation boundaries are absent.

Träbjörn command positions for weather, encryption, teleprinter and operational plotting.; Träbjörn had about 50 direct communications connections and a 12-channel radio link by 1962.; Manual situation boards were photographed to transfer the picture to the reserve location.; Stenbjörn supported E 1 command, internal training/exercises and encrypted communications checks; hardware details are withheld.

For Träbjörn: joined timber/ordinary buildings, operations rooms and communications fit-out.; For Stenbjörn: allocation within an existing rock shell, protected utilities and command/communications systems.; For either: secure communications, plotting/operations fit-out and redundancy.; Rock excavation is not source-supported as an incremental Stenbjörn quantity because the shell already existed.

The article covers Träbjörn, reserve Ardala/Björn 2, distributed LFC attack groups and successor Stenbjörn. These are separate sites/functions and must not be rolled into one facility.

Indeterminate

Decision whether the record is intended to price Träbjörn or Stenbjörn.; Träbjörn building footprints/areas and compound inventory.; Stenbjörn allocated area and boundary within the shared rock facility.; Stenbjörn existing-cavern versus incremental construction scope.; Portal, level, inner-building and utility geometry for Stenbjörn.; Mission-equipment inventory for either command post.

The complete many-to-many source mapping links both Träbjörn and Stenbjörn, although the initially extracted internal_dossier_urls exposed only Stenbjörn.; The linked model should not infer Stenbjörn geometry from Träbjörn's two storeys or 25 rooms.; The source contains unresolved historiographical disagreement and anonymous testimony.