The two faces of Mabo the Melodious, Apollo of the ancient American

Norse-Irish and god of music. In this aspect, from Heizer & Baumhoff's site

#Cl-4, Cane Springs, Clark County, Nevada, he is lyre-faced.

The ogam lettering reads in consonantal Gaelic R-N-C-L-R-C-M

(Irish rann claruicim) = "I sing stanzas to music." (Fell 1982).