El choclo : tango criollo para piano / A.G. Villoldo.

For piano.
"Á mi amigo José L. Roncallo"--p. [1] (cover) and p. 2.
Possible 1st ed.; published "no later than the first few months of 1911". Cf. Fuld, J.J. The book of world-famous music, p. 169.
Library's copy is trimmed at bottom, with possible loss of text.
Library's copy lacks all pages following p. 2.