- Elena Asins Madrid, Spain, 1940 - Azpíroz, Navarre, Spain, 2015
- Date:1969 / 2009
- Technique:Digital print on paper
- Dimensions:122,5 x 154,5 cm
- Entry date:2009
- Register number:AD05309
- Donation of the author, 2009
This drawing reproduces the poster for the Elena Asins exhibition in Madrid’s Galería Tupac in 1973. Estructuras en expansión (Expanding Structures) is made up of 24 drawings through which the artist developed the theme of pure structure and linear sphere. It also contains an inscription-title indicating that the origin of these structural element studies took place in 1969.