(Documentary Artifact): One b/w photographic print of Roberto Thomson sitting on a rock at the base of a cliff. Possible cave entrance is on the right.
Notes on verso of print:
OP 14961-526/ 88:17050-526/ SERI/ TIBURON (?)/ ?/ ROBERTO THOMSON SITTING ON ROCK AT/ BASE OF LARGE CLIFF. INTERESTING ROCK/ FORMATION AT RIGHT./ 16/ [Stamped:] ED. H. DAVIS/ Mesa Grande, Calif.