(Documentary Artifact): Two b/w photographic prints of (L-R) Roberto Thomson and a guide on horseback on the mesa above Infierno Canyon in front of zarbueso or cordon cactus.
Notes on verso of prints:
Image 1: OP 14961-117/ 88:17050-117/ 4/ B/ 4-10/ MAR. 14, 1926/ SANTA ROSALIA AREA/ ROBERTO THOMSON & GUIDE ON HORSES/ ON MESA ABOVE INFIERNO CANYON/ NEXT TO CORDON CACTUS
Image 2: [Same as Image 1]
