- CollectionST - Forest of Dean Sculpture Trail Archive
- SeriesST/3 - Artists
- FileST/3/1 - Bruce Allan
- 6 more...
- ItemST/3/1/7 - Photograph of Bruce Allan plus other standing on Observatory after safety modification
- ItemST/3/1/8 - Photograph of Observatory after safety modification
- ItemST/3/1/9 - Photograph of section of Observatory with forest background
- ItemST/3/1/10 - Publication "Walking Through Walls" by Bruce Allan
- ItemST/3/1/11 - A4 printout of photograph of Observatory
- ItemST/3/1/12 - A4 printout of photograph of side view of Observatory
- ItemST/3/1/13 - A4 printout of photograph of view from the top of Observatory
- ItemST/3/1/14 - Sculpture management plan for Observatory