(Documentary Artifact): Three b/w photographic prints of Roberto Thomson sitting on a mule and using white chalk to outline rock art representations of a deer and fish on the cave ceiling at San Baltazar. Human figures painted on the cave ceiling can be seen to the right of Thomson.
Notes on verso of prints:
Image 1: OP 14961-187/A 88:17050-187A/ 14/ 1/ MULEGE/ ROBERTO THOMSON ON MULE OUTLINING/ DEER & FISH IN WHITE CHALK IN CAVE/ AT SAN BALTAZAR.
Image 2: OP 14961-187/A 88:17050-187A/ 14/ B/ 12 1/ Mural paintings cave/ B.C. 1926/ Roberto on mule outlining deer + fish/ in white chalk/ April 1, 1926/ 4/1/26/ [Stamped:] ED. H. DAVIS/ Mesa Grande, Calif./
Image 2: [Same as Image 1]/ PETROGLYPHS