the UCLA Chicano Studies Research Center,
the Arhoolie Foundation,
and the UCLA Digital Library
There is two copies of this 78 present. Segunda: E. Arizmendez, Contra: J. Viesca, B. Sexto: H. Zimmerle. There seems to be a skip in the song, the 78 looks to be free of any deep scratches but there is a skip is present in the recording as well as the digital transfer. The skip is exactly 10 seconds into the song.