File:Allegretto By Cleo Damianakes.jpg
"Allegretto" was one of the highlights of the American Etchers Salon of 1922 exhibit at the Brown-Robertson Gallery in New York (New York Herald, February 19, 1922).
It was published in The Appreciation of Art" by Eugen Neuhaus in 1924.
Smithsonian American Art Museum: https://americanart.si.edu/artwork/allegretto-6184
Published in 1924 in The Appreciation of Art by Eugen Neuhaus (Boston: Ginn and Company), p. 160: https://archive.org/details/appreciationofar0000neuh/page/160/mode/2up