[4] In 1939 while at an Emilio Pettoruti art show, Rothfuss met and became friends with the artist, Carmelo Arden Quin.
Rothfuss soon became friends with fellow artists, Gyula Kosice, Tomás Maldonado, Carmelo Arden Quin.
In 1944, Rothfuss was part of the group of artists who created and edited the magazine called Arturo, which existed for only one issue, and included fellow artists, Carmelo Arden Quin, Edgar Bailey, Gyula Kosice, Raúl Lozza, Tomas Maldonado, and Lidy Prati.
[1][7][8] During this time, to illustrate the concrete nature of his work, Rothfuss used nontraditional materials like diamonds and employed notched and irregular shapes in his artwork.
Other artists in the group included Alfredo Hlito, Lidy Prati, Manuel Espinosa, Enio Iommi, Raul Lozza among others.